diff --git a/lab0315-cp-a/a.out b/lab0315-cp-a/a.out
new file mode 100755
index 0000000000000000000000000000000000000000..fd94e77317f25696de1167ad6d2d07ecc9f70e30
Binary files /dev/null and b/lab0315-cp-a/a.out differ
diff --git a/lab0315-cp-a/h b/lab0315-cp-a/h
new file mode 100644
index 0000000000000000000000000000000000000000..0836e43ae4fd66e21e5acea93bf3fe20e4f2ba37
--- /dev/null
+++ b/lab0315-cp-a/h
@@ -0,0 +1,81 @@
+    1  ls -al
+    2  ls-al
+    3  ls -al
+    4  ls
+    5  ls -al
+    6  passwd
+    7  passwd
+    8  passwd
+    9  passwd
+   10  ssh oss028@git.ajou.ac.kr
+   11  who
+   12  who | wc
+   13  who | wc
+   14  who | wc
+   15   clear
+   16  ls
+   17  ls -l
+   18  ls -al
+   19  cp ~oss000/.bas* ~oss000/.profile .
+   20  cp ~oss000/.bas* ~oss000/.profile .
+   21  cp ~oss000/.bas* ~oss000/.profile .
+   22  ls -al
+   23  exit
+   24  who
+   25  exit
+   26  who
+   27  tty
+   28  who | wc
+   29  who | tail
+   30  who | sort
+   31  clear
+   32  cd
+   33  pwd
+   34  ls
+   35  mkdir foss
+   36  cd foss
+   37  pwd
+   38  cd
+   39  pwd
+   40  cd ..
+   41  ls
+   42  cd oss000
+   43  ls
+   44  cd
+   45  cd foss
+   46  pwd
+   47  ls -al
+   48  echo "JinHyuk Kim - 201520874" > studentid
+   49  ls -al
+   50  pwd
+   51  logout
+   52  who
+   53  cd foss
+   54  ls -al
+   55  cat studentid
+   56  cd /
+   57  ls -al
+   58  ls
+   59  cd /dev
+   60  ls
+   61  ls -l
+   62  tty
+   63  cd /dev/pts/133
+   64  cd /dev/pts
+   65  ls -al
+   66  ls -l
+   67  tty
+   68  echo "Hi I am JinHyuk" > /dev/pts/133
+   69  tty
+   70  chmod 777 /dev/pts/96
+   71  df
+   72  ls
+   73  cd
+   74  pwd
+   75  cd foss
+   76  ls -al
+   77  mkdir lab0315
+   78  cd lab0315/
+   79  ls -al
+   80  history
+   81  history > h
diff --git a/lab0315-cp-a/hello.c b/lab0315-cp-a/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..8539b5bdaa1e108caa040548e919e9e83032836f
--- /dev/null
+++ b/lab0315-cp-a/hello.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+int main()
+{
+	int a;
+	fscanf(stdin, "%d",&a);
+	fprintf(stdout, "Hello Stdout %d\n",a);
+	fprintf(stderr, "Hello stderr %d\n",a+100);
+	return 0;
+}
diff --git a/lab0315-cp/a.out b/lab0315-cp/a.out
new file mode 100755
index 0000000000000000000000000000000000000000..fd94e77317f25696de1167ad6d2d07ecc9f70e30
Binary files /dev/null and b/lab0315-cp/a.out differ
diff --git a/lab0315-cp/h b/lab0315-cp/h
new file mode 100644
index 0000000000000000000000000000000000000000..0836e43ae4fd66e21e5acea93bf3fe20e4f2ba37
--- /dev/null
+++ b/lab0315-cp/h
@@ -0,0 +1,81 @@
+    1  ls -al
+    2  ls-al
+    3  ls -al
+    4  ls
+    5  ls -al
+    6  passwd
+    7  passwd
+    8  passwd
+    9  passwd
+   10  ssh oss028@git.ajou.ac.kr
+   11  who
+   12  who | wc
+   13  who | wc
+   14  who | wc
+   15   clear
+   16  ls
+   17  ls -l
+   18  ls -al
+   19  cp ~oss000/.bas* ~oss000/.profile .
+   20  cp ~oss000/.bas* ~oss000/.profile .
+   21  cp ~oss000/.bas* ~oss000/.profile .
+   22  ls -al
+   23  exit
+   24  who
+   25  exit
+   26  who
+   27  tty
+   28  who | wc
+   29  who | tail
+   30  who | sort
+   31  clear
+   32  cd
+   33  pwd
+   34  ls
+   35  mkdir foss
+   36  cd foss
+   37  pwd
+   38  cd
+   39  pwd
+   40  cd ..
+   41  ls
+   42  cd oss000
+   43  ls
+   44  cd
+   45  cd foss
+   46  pwd
+   47  ls -al
+   48  echo "JinHyuk Kim - 201520874" > studentid
+   49  ls -al
+   50  pwd
+   51  logout
+   52  who
+   53  cd foss
+   54  ls -al
+   55  cat studentid
+   56  cd /
+   57  ls -al
+   58  ls
+   59  cd /dev
+   60  ls
+   61  ls -l
+   62  tty
+   63  cd /dev/pts/133
+   64  cd /dev/pts
+   65  ls -al
+   66  ls -l
+   67  tty
+   68  echo "Hi I am JinHyuk" > /dev/pts/133
+   69  tty
+   70  chmod 777 /dev/pts/96
+   71  df
+   72  ls
+   73  cd
+   74  pwd
+   75  cd foss
+   76  ls -al
+   77  mkdir lab0315
+   78  cd lab0315/
+   79  ls -al
+   80  history
+   81  history > h
diff --git a/lab0315-cp/hello.c b/lab0315-cp/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..8539b5bdaa1e108caa040548e919e9e83032836f
--- /dev/null
+++ b/lab0315-cp/hello.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+int main()
+{
+	int a;
+	fscanf(stdin, "%d",&a);
+	fprintf(stdout, "Hello Stdout %d\n",a);
+	fprintf(stderr, "Hello stderr %d\n",a+100);
+	return 0;
+}
diff --git a/lab0315/a.out b/lab0315/a.out
new file mode 100755
index 0000000000000000000000000000000000000000..fd94e77317f25696de1167ad6d2d07ecc9f70e30
Binary files /dev/null and b/lab0315/a.out differ
diff --git a/lab0315/h b/lab0315/h
new file mode 100644
index 0000000000000000000000000000000000000000..0836e43ae4fd66e21e5acea93bf3fe20e4f2ba37
--- /dev/null
+++ b/lab0315/h
@@ -0,0 +1,81 @@
+    1  ls -al
+    2  ls-al
+    3  ls -al
+    4  ls
+    5  ls -al
+    6  passwd
+    7  passwd
+    8  passwd
+    9  passwd
+   10  ssh oss028@git.ajou.ac.kr
+   11  who
+   12  who | wc
+   13  who | wc
+   14  who | wc
+   15   clear
+   16  ls
+   17  ls -l
+   18  ls -al
+   19  cp ~oss000/.bas* ~oss000/.profile .
+   20  cp ~oss000/.bas* ~oss000/.profile .
+   21  cp ~oss000/.bas* ~oss000/.profile .
+   22  ls -al
+   23  exit
+   24  who
+   25  exit
+   26  who
+   27  tty
+   28  who | wc
+   29  who | tail
+   30  who | sort
+   31  clear
+   32  cd
+   33  pwd
+   34  ls
+   35  mkdir foss
+   36  cd foss
+   37  pwd
+   38  cd
+   39  pwd
+   40  cd ..
+   41  ls
+   42  cd oss000
+   43  ls
+   44  cd
+   45  cd foss
+   46  pwd
+   47  ls -al
+   48  echo "JinHyuk Kim - 201520874" > studentid
+   49  ls -al
+   50  pwd
+   51  logout
+   52  who
+   53  cd foss
+   54  ls -al
+   55  cat studentid
+   56  cd /
+   57  ls -al
+   58  ls
+   59  cd /dev
+   60  ls
+   61  ls -l
+   62  tty
+   63  cd /dev/pts/133
+   64  cd /dev/pts
+   65  ls -al
+   66  ls -l
+   67  tty
+   68  echo "Hi I am JinHyuk" > /dev/pts/133
+   69  tty
+   70  chmod 777 /dev/pts/96
+   71  df
+   72  ls
+   73  cd
+   74  pwd
+   75  cd foss
+   76  ls -al
+   77  mkdir lab0315
+   78  cd lab0315/
+   79  ls -al
+   80  history
+   81  history > h
diff --git a/lab0315/hello.c b/lab0315/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..8539b5bdaa1e108caa040548e919e9e83032836f
--- /dev/null
+++ b/lab0315/hello.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+int main()
+{
+	int a;
+	fscanf(stdin, "%d",&a);
+	fprintf(stdout, "Hello Stdout %d\n",a);
+	fprintf(stderr, "Hello stderr %d\n",a+100);
+	return 0;
+}
diff --git a/lab0318-cp/file2 b/lab0318-cp/file2
new file mode 100644
index 0000000000000000000000000000000000000000..4f1bdfce99bd70c74a963b247d75ae4b181c64a3
--- /dev/null
+++ b/lab0318-cp/file2
@@ -0,0 +1 @@
+I am file 2.
diff --git a/lab0318-cp/hfile1 b/lab0318-cp/hfile1
new file mode 100644
index 0000000000000000000000000000000000000000..c38d8a9828bb5927237c88c530c59f1dd562b204
--- /dev/null
+++ b/lab0318-cp/hfile1
@@ -0,0 +1,2 @@
+AMUGEONA
+111111111111111
diff --git a/lab0318-cp/hfile2 b/lab0318-cp/hfile2
new file mode 100644
index 0000000000000000000000000000000000000000..c38d8a9828bb5927237c88c530c59f1dd562b204
--- /dev/null
+++ b/lab0318-cp/hfile2
@@ -0,0 +1,2 @@
+AMUGEONA
+111111111111111
diff --git a/lab0318-cp/hfile2_h b/lab0318-cp/hfile2_h
new file mode 100644
index 0000000000000000000000000000000000000000..c38d8a9828bb5927237c88c530c59f1dd562b204
--- /dev/null
+++ b/lab0318-cp/hfile2_h
@@ -0,0 +1,2 @@
+AMUGEONA
+111111111111111
diff --git a/lab0318-cp/sfile1 b/lab0318-cp/sfile1
new file mode 120000
index 0000000000000000000000000000000000000000..30d67d4672d5c05833b7192cc77a79eaafb5c7ad
--- /dev/null
+++ b/lab0318-cp/sfile1
@@ -0,0 +1 @@
+file2
\ No newline at end of file
diff --git a/lab0318-cp/shfile2 b/lab0318-cp/shfile2
new file mode 120000
index 0000000000000000000000000000000000000000..ffbf7a2054a19d2deb0f5ea02b754577e6c561bb
--- /dev/null
+++ b/lab0318-cp/shfile2
@@ -0,0 +1 @@
+hfile1
\ No newline at end of file
diff --git a/lab0318-cp/slink_str b/lab0318-cp/slink_str
new file mode 120000
index 0000000000000000000000000000000000000000..67aec62735e5e28f882c24d79c804c440fbd460f
--- /dev/null
+++ b/lab0318-cp/slink_str
@@ -0,0 +1 @@
+../../foss/lab0318/hfile1
\ No newline at end of file
diff --git a/lab0318-cp/sum b/lab0318-cp/sum
new file mode 100644
index 0000000000000000000000000000000000000000..b6c478cb1e1d04106ceaf1c6ba82bd12f8958dcc
--- /dev/null
+++ b/lab0318-cp/sum
@@ -0,0 +1,6 @@
+AMUGEONA
+
+
+AMUGEONA
+
+
diff --git a/lab0318/file2 b/lab0318/file2
new file mode 100644
index 0000000000000000000000000000000000000000..4f1bdfce99bd70c74a963b247d75ae4b181c64a3
--- /dev/null
+++ b/lab0318/file2
@@ -0,0 +1 @@
+I am file 2.
diff --git a/lab0318/hfile1 b/lab0318/hfile1
new file mode 100644
index 0000000000000000000000000000000000000000..c38d8a9828bb5927237c88c530c59f1dd562b204
--- /dev/null
+++ b/lab0318/hfile1
@@ -0,0 +1,2 @@
+AMUGEONA
+111111111111111
diff --git a/lab0318/hfile2 b/lab0318/hfile2
new file mode 100644
index 0000000000000000000000000000000000000000..c38d8a9828bb5927237c88c530c59f1dd562b204
--- /dev/null
+++ b/lab0318/hfile2
@@ -0,0 +1,2 @@
+AMUGEONA
+111111111111111
diff --git a/lab0318/hfile2_h b/lab0318/hfile2_h
new file mode 100644
index 0000000000000000000000000000000000000000..c38d8a9828bb5927237c88c530c59f1dd562b204
--- /dev/null
+++ b/lab0318/hfile2_h
@@ -0,0 +1,2 @@
+AMUGEONA
+111111111111111
diff --git a/lab0318/sfile1 b/lab0318/sfile1
new file mode 120000
index 0000000000000000000000000000000000000000..30d67d4672d5c05833b7192cc77a79eaafb5c7ad
--- /dev/null
+++ b/lab0318/sfile1
@@ -0,0 +1 @@
+file2
\ No newline at end of file
diff --git a/lab0318/shfile2 b/lab0318/shfile2
new file mode 120000
index 0000000000000000000000000000000000000000..ffbf7a2054a19d2deb0f5ea02b754577e6c561bb
--- /dev/null
+++ b/lab0318/shfile2
@@ -0,0 +1 @@
+hfile1
\ No newline at end of file
diff --git a/lab0318/slink_str b/lab0318/slink_str
new file mode 120000
index 0000000000000000000000000000000000000000..67aec62735e5e28f882c24d79c804c440fbd460f
--- /dev/null
+++ b/lab0318/slink_str
@@ -0,0 +1 @@
+../../foss/lab0318/hfile1
\ No newline at end of file
diff --git a/lab0318/sum b/lab0318/sum
new file mode 100644
index 0000000000000000000000000000000000000000..b6c478cb1e1d04106ceaf1c6ba82bd12f8958dcc
--- /dev/null
+++ b/lab0318/sum
@@ -0,0 +1,6 @@
+AMUGEONA
+
+
+AMUGEONA
+
+
diff --git a/lab0322/a.err.result b/lab0322/a.err.result
new file mode 100644
index 0000000000000000000000000000000000000000..11d3c71dbf977469061c02f110f7064c5657499e
--- /dev/null
+++ b/lab0322/a.err.result
@@ -0,0 +1 @@
+Hello stderr 1100
diff --git a/lab0322/a.out b/lab0322/a.out
new file mode 100755
index 0000000000000000000000000000000000000000..ea2757ef404eb5178003bfbfb57207a76e4b359f
Binary files /dev/null and b/lab0322/a.out differ
diff --git a/lab0322/a.result b/lab0322/a.result
new file mode 100644
index 0000000000000000000000000000000000000000..8cb1d64be6b1020db9e66b228076272b8b2b0d22
--- /dev/null
+++ b/lab0322/a.result
@@ -0,0 +1 @@
+Hello Stdout 999
diff --git a/lab0322/catout.txt b/lab0322/catout.txt
new file mode 100644
index 0000000000000000000000000000000000000000..057f6c64bb2640fddc2ba9959f46782815228cb9
--- /dev/null
+++ b/lab0322/catout.txt
@@ -0,0 +1,5 @@
+1
+2
+3
+BABOYA
+YAYA
diff --git a/lab0322/hello.c b/lab0322/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..8e9404d11469f78a3aaf7acdf7891de4ed770149
--- /dev/null
+++ b/lab0322/hello.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main()
+{
+	int a;
+	fscanf(stdin, "%d",&a);
+	fprintf(stdout, "Hello Stdout %d\n",a);
+	flush(stdout);
+	fprintf(stderr, "Hello stderr %d\n",a+100);
+	fflush(stderr);
+	return 0;
+}
diff --git a/lab0322/input-900 b/lab0322/input-900
new file mode 100644
index 0000000000000000000000000000000000000000..4b02a197f603b1424f13f8f5293cbf92417c1b00
--- /dev/null
+++ b/lab0322/input-900
@@ -0,0 +1 @@
+900
diff --git a/lab0322/inputfile b/lab0322/inputfile
new file mode 100644
index 0000000000000000000000000000000000000000..230ef9929862bf9f80fbcf5acb1d874e67b89273
--- /dev/null
+++ b/lab0322/inputfile
@@ -0,0 +1,2 @@
+99899
+33456
diff --git a/lab0322/lsresult.txt b/lab0322/lsresult.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f76b1e0c606f337a13ab7b1cf2b81e077ddcdbd2
--- /dev/null
+++ b/lab0322/lsresult.txt
@@ -0,0 +1,7 @@
+total 28
+-rwxr-xr-x 1 oss028 foss 8536  3월 22 12:07 a.out
+-rw-r--r-- 1 oss028 foss  165  3월 22 12:06 hello.c
+-rw-r--r-- 1 oss028 foss    6  3월 22 12:20 inputfile
+-rw-r--r-- 1 oss028 foss    0  3월 22 12:22 lsresult.txt
+-rw-r--r-- 1 oss028 foss   25  3월 18 13:11 sl
+-rw-r--r-- 1 oss028 foss   24  3월 18 13:03 std_id2
diff --git a/lab0322/sl b/lab0322/sl
new file mode 100644
index 0000000000000000000000000000000000000000..c38d8a9828bb5927237c88c530c59f1dd562b204
--- /dev/null
+++ b/lab0322/sl
@@ -0,0 +1,2 @@
+AMUGEONA
+111111111111111
diff --git a/lab0322/std.txt b/lab0322/std.txt
new file mode 100644
index 0000000000000000000000000000000000000000..fdedf18695c43a1a4ff695e26abb1d678b47fd79
--- /dev/null
+++ b/lab0322/std.txt
@@ -0,0 +1,2 @@
+Hello Stdout 2000
+Hello stderr 2100
diff --git a/lab0322/std_id2 b/lab0322/std_id2
new file mode 100644
index 0000000000000000000000000000000000000000..b82b0ef6bbc7c946da38972a9d4e96cb7afdb76f
--- /dev/null
+++ b/lab0322/std_id2
@@ -0,0 +1 @@
+JinHyuk Kim - 201520874
diff --git a/lab0322/stderr.txt b/lab0322/stderr.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c8c4c724bae4b7072c83ca51953ce12894611d84
--- /dev/null
+++ b/lab0322/stderr.txt
@@ -0,0 +1 @@
+Hello stderr 2100
diff --git a/lab0322/stdout.txt b/lab0322/stdout.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d1b2bda6564906ac832fff249ac63df8ca0f4635
--- /dev/null
+++ b/lab0322/stdout.txt
@@ -0,0 +1 @@
+Hello Stdout 2000
diff --git a/lab0329/a.out b/lab0329/a.out
new file mode 100755
index 0000000000000000000000000000000000000000..84e0d56b4f0e3712e8b5e020c9e09ebf2d0e7490
Binary files /dev/null and b/lab0329/a.out differ
diff --git a/lab0329/backup-lab0315.tar b/lab0329/backup-lab0315.tar
new file mode 100644
index 0000000000000000000000000000000000000000..7431d88086b6550e6fd52e98fe972474e8ab54e9
Binary files /dev/null and b/lab0329/backup-lab0315.tar differ
diff --git a/lab0329/hello.c b/lab0329/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..616bad2b5759dee3d5da63519aa61a40a236b89f
--- /dev/null
+++ b/lab0329/hello.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+int main()
+{
+	int a;
+	fscanf(stdin, "%d",&a);
+	fprintf(stdout, "Hello Stdout %d\n",a);
+	fprintf(stderr, "Hello stderr %d\n",a+100);
+	return a;
+}
diff --git a/lab0329/lab0315/a.out b/lab0329/lab0315/a.out
new file mode 100755
index 0000000000000000000000000000000000000000..fd94e77317f25696de1167ad6d2d07ecc9f70e30
Binary files /dev/null and b/lab0329/lab0315/a.out differ
diff --git a/lab0329/lab0315/h b/lab0329/lab0315/h
new file mode 100644
index 0000000000000000000000000000000000000000..0836e43ae4fd66e21e5acea93bf3fe20e4f2ba37
--- /dev/null
+++ b/lab0329/lab0315/h
@@ -0,0 +1,81 @@
+    1  ls -al
+    2  ls-al
+    3  ls -al
+    4  ls
+    5  ls -al
+    6  passwd
+    7  passwd
+    8  passwd
+    9  passwd
+   10  ssh oss028@git.ajou.ac.kr
+   11  who
+   12  who | wc
+   13  who | wc
+   14  who | wc
+   15   clear
+   16  ls
+   17  ls -l
+   18  ls -al
+   19  cp ~oss000/.bas* ~oss000/.profile .
+   20  cp ~oss000/.bas* ~oss000/.profile .
+   21  cp ~oss000/.bas* ~oss000/.profile .
+   22  ls -al
+   23  exit
+   24  who
+   25  exit
+   26  who
+   27  tty
+   28  who | wc
+   29  who | tail
+   30  who | sort
+   31  clear
+   32  cd
+   33  pwd
+   34  ls
+   35  mkdir foss
+   36  cd foss
+   37  pwd
+   38  cd
+   39  pwd
+   40  cd ..
+   41  ls
+   42  cd oss000
+   43  ls
+   44  cd
+   45  cd foss
+   46  pwd
+   47  ls -al
+   48  echo "JinHyuk Kim - 201520874" > studentid
+   49  ls -al
+   50  pwd
+   51  logout
+   52  who
+   53  cd foss
+   54  ls -al
+   55  cat studentid
+   56  cd /
+   57  ls -al
+   58  ls
+   59  cd /dev
+   60  ls
+   61  ls -l
+   62  tty
+   63  cd /dev/pts/133
+   64  cd /dev/pts
+   65  ls -al
+   66  ls -l
+   67  tty
+   68  echo "Hi I am JinHyuk" > /dev/pts/133
+   69  tty
+   70  chmod 777 /dev/pts/96
+   71  df
+   72  ls
+   73  cd
+   74  pwd
+   75  cd foss
+   76  ls -al
+   77  mkdir lab0315
+   78  cd lab0315/
+   79  ls -al
+   80  history
+   81  history > h
diff --git a/lab0329/lab0315/hello.c b/lab0329/lab0315/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..8539b5bdaa1e108caa040548e919e9e83032836f
--- /dev/null
+++ b/lab0329/lab0315/hello.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+int main()
+{
+	int a;
+	fscanf(stdin, "%d",&a);
+	fprintf(stdout, "Hello Stdout %d\n",a);
+	fprintf(stderr, "Hello stderr %d\n",a+100);
+	return 0;
+}
diff --git a/lab0329/test.ztar b/lab0329/test.ztar
new file mode 100644
index 0000000000000000000000000000000000000000..7fdf9f93e176d22ef3c2beafe7305c145bfbaa0e
Binary files /dev/null and b/lab0329/test.ztar differ
diff --git a/lab0401/a.out b/lab0401/a.out
new file mode 100755
index 0000000000000000000000000000000000000000..84e0d56b4f0e3712e8b5e020c9e09ebf2d0e7490
Binary files /dev/null and b/lab0401/a.out differ
diff --git a/lab0401/a.txt b/lab0401/a.txt
new file mode 100644
index 0000000000000000000000000000000000000000..dffcb5d4ce6aabba2f06dcca53d2496862cc8c5c
--- /dev/null
+++ b/lab0401/a.txt
@@ -0,0 +1 @@
+Hello Stdout 9
diff --git a/lab0401/ans3.txt b/lab0401/ans3.txt
new file mode 100644
index 0000000000000000000000000000000000000000..f0c31ef6aef7b0c4ca3da588630d510a5423b8a3
--- /dev/null
+++ b/lab0401/ans3.txt
@@ -0,0 +1,10 @@
+total 64
+25040968 drwxr-xr-x  2 oss028 foss 4096  4월  4 01:08 .
+24641847 drwxr-xr-x 13 oss028 foss 4096  4월  4 00:53 ..
+25041012 -rw-r--r--  1 oss028 foss    0  4월  4 01:08 ans3.txt
+25040996 -rwxr-xr-x  1 oss028 foss 8536  4월  4 01:03 a.out
+25041000 -rwxr-xr-x  1 oss028 foss 8536  4월  4 00:57 b.out
+25041004 -rwxr-xr-x  1 oss028 foss 8536  4월  4 00:57 c.out
+25040992 -rw-r--r--  1 oss028 foss  165  4월  4 00:56 hello.c
+25040984 -rw-r--r--  1 oss028 foss 8419  4월  4 00:54 hist.start
+25041008 -rwxr-xr-x  1 oss028 foss    8  4월  4 01:07 lllls
diff --git a/lab0401/b.out b/lab0401/b.out
new file mode 100755
index 0000000000000000000000000000000000000000..84e0d56b4f0e3712e8b5e020c9e09ebf2d0e7490
Binary files /dev/null and b/lab0401/b.out differ
diff --git a/lab0401/b.txt b/lab0401/b.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6cec986ed66588c5e58c409dc665e64eca46628f
--- /dev/null
+++ b/lab0401/b.txt
@@ -0,0 +1 @@
+Hello Stdout 100
diff --git a/lab0401/c.out b/lab0401/c.out
new file mode 100755
index 0000000000000000000000000000000000000000..84e0d56b4f0e3712e8b5e020c9e09ebf2d0e7490
Binary files /dev/null and b/lab0401/c.out differ
diff --git a/lab0401/hello.c b/lab0401/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..616bad2b5759dee3d5da63519aa61a40a236b89f
--- /dev/null
+++ b/lab0401/hello.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+int main()
+{
+	int a;
+	fscanf(stdin, "%d",&a);
+	fprintf(stdout, "Hello Stdout %d\n",a);
+	fprintf(stderr, "Hello stderr %d\n",a+100);
+	return a;
+}
diff --git a/lab0401/hist.end b/lab0401/hist.end
new file mode 100644
index 0000000000000000000000000000000000000000..0e30b031b60ed491631adba64ef3d152ef51695c
--- /dev/null
+++ b/lab0401/hist.end
@@ -0,0 +1,537 @@
+    1  ls -al
+    2  ls-al
+    3  ls -al
+    4  ls
+    5  ls -al
+    6  passwd
+    7  passwd
+    8  passwd
+    9  passwd
+   10  ssh oss028@git.ajou.ac.kr
+   11  who
+   12  who | wc
+   13  who | wc
+   14  who | wc
+   15   clear
+   16  ls
+   17  ls -l
+   18  ls -al
+   19  cp ~oss000/.bas* ~oss000/.profile .
+   20  cp ~oss000/.bas* ~oss000/.profile .
+   21  cp ~oss000/.bas* ~oss000/.profile .
+   22  ls -al
+   23  exit
+   24  who
+   25  exit
+   26  who
+   27  tty
+   28  who | wc
+   29  who | tail
+   30  who | sort
+   31  clear
+   32  cd
+   33  pwd
+   34  ls
+   35  mkdir foss
+   36  cd foss
+   37  pwd
+   38  cd
+   39  pwd
+   40  cd ..
+   41  ls
+   42  cd oss000
+   43  ls
+   44  cd
+   45  cd foss
+   46  pwd
+   47  ls -al
+   48  echo "JinHyuk Kim - 201520874" > studentid
+   49  ls -al
+   50  pwd
+   51  logout
+   52  who
+   53  cd foss
+   54  ls -al
+   55  cat studentid
+   56  cd /
+   57  ls -al
+   58  ls
+   59  cd /dev
+   60  ls
+   61  ls -l
+   62  tty
+   63  cd /dev/pts/133
+   64  cd /dev/pts
+   65  ls -al
+   66  ls -l
+   67  tty
+   68  echo "Hi I am JinHyuk" > /dev/pts/133
+   69  tty
+   70  chmod 777 /dev/pts/96
+   71  df
+   72  ls
+   73  cd
+   74  pwd
+   75  cd foss
+   76  ls -al
+   77  mkdir lab0315
+   78  cd lab0315/
+   79  ls -al
+   80  history
+   81  history > h
+   82  cat h
+   83  vi hello.c
+   84  ls -al
+   85  cc hello.c
+   86  vi hello.c
+   87  cc hello.c
+   88  ls -al
+   89  ./a.out
+   90  vi hello.c
+   91  ./a.out
+   92  vi hello.c
+   93  cd /dev
+   94  cd /usr/include
+   95  ls
+   96  ls -l stdio.h
+   97  vi stdio.h
+   98  cd
+   99  cd foss
+  100  cd lab0315
+  101  vi hello.c
+  102  cc hello.c
+  103  ./a.out
+  104  vi ~/.profile
+  105  a.out
+  106  logout
+  107  who | wc
+  108  ls foss
+  109  ls -al foss
+  110  ls -l foss
+  111  ls -l
+  112  ls -a
+  113  ls -al
+  114  ls -a -l
+  115  man ls
+  116  ls -lA
+  117  ls -lAh
+  118  cd foss
+  119  cd foss/
+  120  ls -al
+  121  mkdir lab0318
+  122  ls -al
+  123  cd lab0318
+  124  touch file1
+  125  ls -al
+  126  ls -lA
+  127  history
+  128  date
+  129  ls -lA
+  130  cp file1 file2
+  131  ls -lA
+  132  cat file1
+  133  cat file3
+  134  vi file1
+  135  ls -lA
+  136  link
+  137  link3
+  138  ln file1 hfile1
+  139  ls -lA
+  140  cat file1
+  141  man cat
+  142  cat file1 file2 hfile1
+  143  cat file1 file2 hfile1 > sum
+  144  ls -lA
+  145  vi hfile1
+  146  ls -lA
+  147  vi hfile1
+  148  ls -lA
+  149  cat file1 hfile1
+  150  whoami
+  151  more /etc/passwd
+  152  ps
+  153  ls -i
+  154  ls -li
+  155  ln file1 hfile2
+  156  ln hfile2 hfile2_h
+  157  ls -al
+  158  ls -li
+  159  rm file1
+  160  ls -li
+  161  ln -s file2 sfile1
+  162  ls -li
+  163  vi file2
+  164  ls -li
+  165  cat sfile1
+  166  cat file2 sfile1
+  167  ln -s hfile1 shfile2
+  168  ls -li
+  169  ln -s ../../foss/lab0318/hfile1 slink_str
+  170  ls -li
+  171  file slink_str
+  172  cat slink_str
+  173  cd ..
+  174  mkdir lab0322
+  175  cp studentid stdid
+  176  ls -al
+  177  ls -li
+  178  mv stdid std_id
+  179  ls -li
+  180  man mv
+  181  mv std-id std_id2
+  182  mv std_id3 id3
+  183  mv std_id std_id2
+  184  mv std_id2 lab0322/
+  185  ls -al
+  186  cd lab0322
+  187  ls -al
+  188  cp../lab0318slink_str ./sl
+  189  cp ../lab0318/slink_str ./sl
+  190  ls -l
+  191  more sl
+  192  ls -li
+  193  cd ..
+  194  cp lab0318/ lab0318-cp
+  195  cp -r lab0318/ lab0318-cp/
+  196  cd lab0318-cp
+  197  ls -al
+  198  ls -li
+  199  logout
+  200  cd
+  201  cd foss
+  202  mkdir lab0322
+  203  cd lab0322
+  204  cp ../lab0315/hello.c .
+  205  ls -la
+  206  vi hello.c
+  207  cc hello.c
+  208  ls -la
+  209  a.out
+  210  ./a.out
+  211  cat hello.c
+  212  ./a.out
+  213  vi inputfile
+  214  cat inputfile
+  215  vi inputfile
+  216  rm inputfile
+  217  ls -al
+  218  vi inputfile
+  219  cat inputfile
+  220  ./a.out < inputfile
+  221  ./a.out 0< inputfile
+  222  o< inputfile ./a.out
+  223  0< inputfile ./a.out
+  224  ls -l
+  225  ls -l > lsresult.txt
+  226  cat lsresult.txt
+  227  ls -la
+  228  ./a.out > a.result
+  229  cat a.result
+  230  ./a.out 2> a.err.result
+  231  cat a.err.result
+  232  ./a.out 0< inputfile 1> stdout.txt 2> stderr.txt
+  233  ls -al
+  234  cat stdout.txt
+  235  cat stderr.txt
+  236  cat inputfile
+  237  ./a.out 0< inputfile 1> std.txt 2> std.txt
+  238  cat std.txt
+  239  ./a.out 0< inputfile >& std.txt
+  240  cat std.txt
+  241  vi hello.c
+  242  cc hello.c
+  243  ./a.out 0< inputfile >& std.txt
+  244  cat std.txt
+  245  ./a.out | wc
+  246  ls -al
+  247  vi hello.c
+  248  cat > catout.txt
+  249  ls -la
+  250  more catout.txt
+  251  cat > inputfile
+  252  more inputfile
+  253  cat inputfile
+  254  cat >> inputfile
+  255  cat inputfile
+  256  logout
+  257  who | sort | grep oss
+  258  grep babo
+  259  grep babo <<EOT
+  260  I am babo
+  261  i am JH
+  262  EDT
+  263  grep babo <<EOT
+  264  I am babo
+  265  i am JH
+  266  EDT
+  267  EOT
+  268  grep EOT <<$$$$
+  269  EOASD
+  270  asdqwedsf EOT
+  271  EOT
+  272  asd
+  273  asd
+  274  asd
+  275  $$$$
+  276  cd
+  277  cd foss
+  278  ls
+  279  cd lab0322
+  280  ./a.out
+  281  echo "900"
+  282  echo 900 > input-900
+  283  ./a.out < input-900
+  284  ./a.out <<< 900
+  285  ls -l a.out
+  286  cd ~oss000/foss/lab0322
+  287  ./a.out <<< 201520874
+  288  ./a.out
+  289  cd
+  290  pwd
+  291  ls -al
+  292  cd foss
+  293  cd
+  294  chmod 700 .
+  295  ls -al
+  296  cd foss
+  297  mkdir lab0325
+  298  cd lab 0325
+  299  cd lab0325
+  300  mkdir dd1
+  301  ls -al
+  302  chmod a-x dd1
+  303  ls -al
+  304  echo "Test" > dd1/test
+  305  cd dd1
+  306  mv dd1 dir1
+  307  ls -l dir1
+  308  chmod g-w dir1
+  309  chmod g+x dir1
+  310  ls -al
+  311  mkdir dir2
+  312  cd dir2
+  313  cd
+  314  cd foss/lab0325
+  315  chmod 700 .
+  316  ls -al
+  317  ps
+  318  ps -a
+  319  ps -l
+  320  ps -ael | grep 9218
+  321  sleep 10
+  322  slepp 5 ; echo "5 sec"
+  323  sleep 5 ; echo "5 sec"
+  324  sleep 5000
+  325  ps
+  326  sleep 5000 &
+  327  ls
+  328  ps
+  329  sleep 6000 &
+  330  ps
+  331  kill 11757
+  332  ps
+  333  kill %2
+  334  ps
+  335  sleep 8000
+  336  bg
+  337  jobs
+  338  fg %1
+  339  fg
+  340  logout
+  341  cd
+  342  cd foss
+  343  mkdir lab0329
+  344  ls -al
+  345  tar -c -f lab0329/backup-0315.tar lab0315
+  346  ls -al
+  347  tar -c -f -v lab0329/backup-0315.tar lab0315
+  348  cp -r lab0315 lab0315-cp
+  349  ls -la lab0315
+  350  ls -la lab0315-cp/
+  351  cp -r -a lab0315 lab0315-cp-a
+  352  ls -l lab0315-cp-a
+  353  ls -la
+  354  tar cvf lab0329/backup-lab0315.tar lab0315
+  355  cd lab0329
+  356  ls -al
+  357  rm backup-0315.tar
+  358  ls -al
+  359  cd foss
+  360  tar cvf lab0329/backup-lab0315.tar lab0315
+  361  cd lab0329
+  362  ls -al
+  363  tar tvf backup-lab0315.tar
+  364  ls 0la
+  365  ls -la
+  366  tar xvf backup-lab0315.tar
+  367  ls -al
+  368  du
+  369  ls -lh
+  370  du -h
+  371  gzip backup-lab0315.tar
+  372  ls -al
+  373  gunzip backup-lab0315.tar.gz
+  374  ls -al
+  375  tar xvfz test.ztar lab0315
+  376  tar cvfz test.ztar lab0315
+  377  ls -al
+  378  tar xvfz test.ztar
+  379  ls -la
+  380  which cd
+  381  ps
+  382  which bash
+  383  ls -l /bin/*sh
+  384  sh
+  385  ls -lal
+  386  echo Hi
+  387  echo -n Hi
+  388  echo -n "hi"
+  389  echo -n "hi" ; echo "hwanyong"
+  390  NAME=jinhyuk
+  391  echo NAME
+  392  echo $NAME
+  393  Name="asd"
+  394  echo $Name
+  395  echo $NAME
+  396  vi a.out
+  397  ls -al
+  398  a.out
+  399  cat a.out
+  400  ./a.out
+  401  chmod 755 a.out
+  402  ./a.out
+  403  cat a.out
+  404  echo $PATH
+  405  PATH="$PATH:."
+  406  echo $PATH
+  407  a.out
+  408  ls ; a.out ; sleep 1; echo "done"
+  409  a.out && ls
+  410  echo "1" && echo "2"
+  411  ls a.out
+  412  ls -l a.out
+  413  ls -l b.out
+  414  ls -l b.out 1> /dev/null
+  415  ls -l b.out 2> /dev/null
+  416  cp ../lab0315/hello.c .
+  417  ls -la
+  418  vi hello.c
+  419  cc hello.c
+  420  vi hello.c
+  421  cc hello.c
+  422  a.out
+  423  cat hello.c
+  424  ls -la
+  425  a.out
+  426  echo $?
+  427  a.out <<< 0
+  428  a.out <<< 0 ; echo $?
+  429  a.out <<< 55 ; echo $?
+  430  a.out <<< 155 ; echo $?
+  431  a.out <<< 2155 ; echo $?
+  432  python
+  433  a.out <<< 0 && a.out <<< 1
+  434  a.out <<< 1 && a.out <<< 0
+  435  a.out <<< 1 || a.out <<< 0
+  436  a.out <<< 0 || a.out <<< 1
+  437  logout
+  438  cd foss
+  439  mkdir lab 0401
+  440  cd 0401
+  441  man shopt
+  442  shopt --help
+  443  shopt
+  444  shopt -s histverify
+  445  history
+  446  echo "0401 lab start"
+  447  cd
+  448  cd foss
+  449  mkdir lab0401 ; cd lab0401
+  450  history
+  451  ls -al
+  452  history > hist.start
+  453  ls -l
+  454  shopt -u histverify
+  455  shopt -s histverify
+  456  ls -l
+  457  ls -l -a
+  458  cp ../lab0329/hello.c ../lab0329/a.out .
+  459  ls -al
+  460  cc.hello.c
+  461  ./a.out
+  462  ./a.out <<< 999
+  463  cc.hello.c
+  464  ./a.out <<< 999
+  465  cp a.out b.out
+  466  ls -al
+  467  cc hello.c
+  468  ls -l
+  469  cp -a b.out c.out
+  470  ls -l
+  471  ./b.out >>> 0100
+  472  ./b.out <<< 0100
+  473  ./c.out <<< 0100
+  474  ./a.out <<< 0100
+  475  ./b.out <<< 0100
+  476  ./a.out <<< 999 a.out a.out a.out b.out
+  477  ./b.out <<< 999 b.out b.out b.out b.out
+  478  history
+  479  ./b.out <<< 999 b.out b.out b.out b.out
+  480  b.out
+  481  ./a.out <<< 999 1 2 3 4 5 6 7
+  482  2 3./a.out
+  483  cat hello.c
+  484  cc hello.c
+  485  cc hello.c -o z.out
+  486  ls -al
+  487  ls -al -al
+  488  rm z.out
+  489  ls -al
+  490  echo "ls -ali" > lllls
+  491  chmod +x lllls
+  492  ./lllls
+  493  ./lllls > ans3.txt
+  494  cat ans3.txt
+  495  echo 123.44
+  496  [[ 123.44 > 99 ]]
+  497  echo $?
+  498  [[ 123.44 < 99 ]]
+  499  echo $?
+  500  history | tail
+  501  [[ 123.44 < 99 ]] ; echo $?
+  502  ((123*123))
+  503  echo $?
+  504  echo $((123*123))
+  505  if ((200>9)); then echo 200 is big; else echo 9 is big; fi
+  506  ls
+  507  *
+  508  echo *
+  509  chmod ans3.txt 777
+  510  echo *out
+  511  echo *u*
+  512  echo l*
+  513  echo a*
+  514  echo {a,b,c}.out
+  515  echo {a,b,c}.aaaaaaaaaaaa
+  516  echo {a..z}.z
+  517  mkdir temp
+  518  cd temp
+  519  touch {a..z}.cpp
+  520  ls -al
+  521  touch {0..999}.c
+  522  ls -al
+  523  rm {a..z}*
+  524  ls -al
+  525  rm {1..999..2}}.c
+  526  rm {1..999..2}.c
+  527  ls -al
+  528  cd ..
+  529  a.out <<< 9 > a.txt ; b.out <<< 100 > b.txt
+  530  { a.out <<< 9 > a.txt ; b.out <<< 100 > b.txt } 2> err.txt; '
+"
+}
+a
+
+asd
+
+  531  history > hist.end
diff --git a/lab0401/hist.start b/lab0401/hist.start
new file mode 100644
index 0000000000000000000000000000000000000000..54cba5cf065583ed9bcc461d36b594e90ac89035
--- /dev/null
+++ b/lab0401/hist.start
@@ -0,0 +1,452 @@
+    1  ls -al
+    2  ls-al
+    3  ls -al
+    4  ls
+    5  ls -al
+    6  passwd
+    7  passwd
+    8  passwd
+    9  passwd
+   10  ssh oss028@git.ajou.ac.kr
+   11  who
+   12  who | wc
+   13  who | wc
+   14  who | wc
+   15   clear
+   16  ls
+   17  ls -l
+   18  ls -al
+   19  cp ~oss000/.bas* ~oss000/.profile .
+   20  cp ~oss000/.bas* ~oss000/.profile .
+   21  cp ~oss000/.bas* ~oss000/.profile .
+   22  ls -al
+   23  exit
+   24  who
+   25  exit
+   26  who
+   27  tty
+   28  who | wc
+   29  who | tail
+   30  who | sort
+   31  clear
+   32  cd
+   33  pwd
+   34  ls
+   35  mkdir foss
+   36  cd foss
+   37  pwd
+   38  cd
+   39  pwd
+   40  cd ..
+   41  ls
+   42  cd oss000
+   43  ls
+   44  cd
+   45  cd foss
+   46  pwd
+   47  ls -al
+   48  echo "JinHyuk Kim - 201520874" > studentid
+   49  ls -al
+   50  pwd
+   51  logout
+   52  who
+   53  cd foss
+   54  ls -al
+   55  cat studentid
+   56  cd /
+   57  ls -al
+   58  ls
+   59  cd /dev
+   60  ls
+   61  ls -l
+   62  tty
+   63  cd /dev/pts/133
+   64  cd /dev/pts
+   65  ls -al
+   66  ls -l
+   67  tty
+   68  echo "Hi I am JinHyuk" > /dev/pts/133
+   69  tty
+   70  chmod 777 /dev/pts/96
+   71  df
+   72  ls
+   73  cd
+   74  pwd
+   75  cd foss
+   76  ls -al
+   77  mkdir lab0315
+   78  cd lab0315/
+   79  ls -al
+   80  history
+   81  history > h
+   82  cat h
+   83  vi hello.c
+   84  ls -al
+   85  cc hello.c
+   86  vi hello.c
+   87  cc hello.c
+   88  ls -al
+   89  ./a.out
+   90  vi hello.c
+   91  ./a.out
+   92  vi hello.c
+   93  cd /dev
+   94  cd /usr/include
+   95  ls
+   96  ls -l stdio.h
+   97  vi stdio.h
+   98  cd
+   99  cd foss
+  100  cd lab0315
+  101  vi hello.c
+  102  cc hello.c
+  103  ./a.out
+  104  vi ~/.profile
+  105  a.out
+  106  logout
+  107  who | wc
+  108  ls foss
+  109  ls -al foss
+  110  ls -l foss
+  111  ls -l
+  112  ls -a
+  113  ls -al
+  114  ls -a -l
+  115  man ls
+  116  ls -lA
+  117  ls -lAh
+  118  cd foss
+  119  cd foss/
+  120  ls -al
+  121  mkdir lab0318
+  122  ls -al
+  123  cd lab0318
+  124  touch file1
+  125  ls -al
+  126  ls -lA
+  127  history
+  128  date
+  129  ls -lA
+  130  cp file1 file2
+  131  ls -lA
+  132  cat file1
+  133  cat file3
+  134  vi file1
+  135  ls -lA
+  136  link
+  137  link3
+  138  ln file1 hfile1
+  139  ls -lA
+  140  cat file1
+  141  man cat
+  142  cat file1 file2 hfile1
+  143  cat file1 file2 hfile1 > sum
+  144  ls -lA
+  145  vi hfile1
+  146  ls -lA
+  147  vi hfile1
+  148  ls -lA
+  149  cat file1 hfile1
+  150  whoami
+  151  more /etc/passwd
+  152  ps
+  153  ls -i
+  154  ls -li
+  155  ln file1 hfile2
+  156  ln hfile2 hfile2_h
+  157  ls -al
+  158  ls -li
+  159  rm file1
+  160  ls -li
+  161  ln -s file2 sfile1
+  162  ls -li
+  163  vi file2
+  164  ls -li
+  165  cat sfile1
+  166  cat file2 sfile1
+  167  ln -s hfile1 shfile2
+  168  ls -li
+  169  ln -s ../../foss/lab0318/hfile1 slink_str
+  170  ls -li
+  171  file slink_str
+  172  cat slink_str
+  173  cd ..
+  174  mkdir lab0322
+  175  cp studentid stdid
+  176  ls -al
+  177  ls -li
+  178  mv stdid std_id
+  179  ls -li
+  180  man mv
+  181  mv std-id std_id2
+  182  mv std_id3 id3
+  183  mv std_id std_id2
+  184  mv std_id2 lab0322/
+  185  ls -al
+  186  cd lab0322
+  187  ls -al
+  188  cp../lab0318slink_str ./sl
+  189  cp ../lab0318/slink_str ./sl
+  190  ls -l
+  191  more sl
+  192  ls -li
+  193  cd ..
+  194  cp lab0318/ lab0318-cp
+  195  cp -r lab0318/ lab0318-cp/
+  196  cd lab0318-cp
+  197  ls -al
+  198  ls -li
+  199  logout
+  200  cd
+  201  cd foss
+  202  mkdir lab0322
+  203  cd lab0322
+  204  cp ../lab0315/hello.c .
+  205  ls -la
+  206  vi hello.c
+  207  cc hello.c
+  208  ls -la
+  209  a.out
+  210  ./a.out
+  211  cat hello.c
+  212  ./a.out
+  213  vi inputfile
+  214  cat inputfile
+  215  vi inputfile
+  216  rm inputfile
+  217  ls -al
+  218  vi inputfile
+  219  cat inputfile
+  220  ./a.out < inputfile
+  221  ./a.out 0< inputfile
+  222  o< inputfile ./a.out
+  223  0< inputfile ./a.out
+  224  ls -l
+  225  ls -l > lsresult.txt
+  226  cat lsresult.txt
+  227  ls -la
+  228  ./a.out > a.result
+  229  cat a.result
+  230  ./a.out 2> a.err.result
+  231  cat a.err.result
+  232  ./a.out 0< inputfile 1> stdout.txt 2> stderr.txt
+  233  ls -al
+  234  cat stdout.txt
+  235  cat stderr.txt
+  236  cat inputfile
+  237  ./a.out 0< inputfile 1> std.txt 2> std.txt
+  238  cat std.txt
+  239  ./a.out 0< inputfile >& std.txt
+  240  cat std.txt
+  241  vi hello.c
+  242  cc hello.c
+  243  ./a.out 0< inputfile >& std.txt
+  244  cat std.txt
+  245  ./a.out | wc
+  246  ls -al
+  247  vi hello.c
+  248  cat > catout.txt
+  249  ls -la
+  250  more catout.txt
+  251  cat > inputfile
+  252  more inputfile
+  253  cat inputfile
+  254  cat >> inputfile
+  255  cat inputfile
+  256  logout
+  257  who | sort | grep oss
+  258  grep babo
+  259  grep babo <<EOT
+  260  I am babo
+  261  i am JH
+  262  EDT
+  263  grep babo <<EOT
+  264  I am babo
+  265  i am JH
+  266  EDT
+  267  EOT
+  268  grep EOT <<$$$$
+  269  EOASD
+  270  asdqwedsf EOT
+  271  EOT
+  272  asd
+  273  asd
+  274  asd
+  275  $$$$
+  276  cd
+  277  cd foss
+  278  ls
+  279  cd lab0322
+  280  ./a.out
+  281  echo "900"
+  282  echo 900 > input-900
+  283  ./a.out < input-900
+  284  ./a.out <<< 900
+  285  ls -l a.out
+  286  cd ~oss000/foss/lab0322
+  287  ./a.out <<< 201520874
+  288  ./a.out
+  289  cd
+  290  pwd
+  291  ls -al
+  292  cd foss
+  293  cd
+  294  chmod 700 .
+  295  ls -al
+  296  cd foss
+  297  mkdir lab0325
+  298  cd lab 0325
+  299  cd lab0325
+  300  mkdir dd1
+  301  ls -al
+  302  chmod a-x dd1
+  303  ls -al
+  304  echo "Test" > dd1/test
+  305  cd dd1
+  306  mv dd1 dir1
+  307  ls -l dir1
+  308  chmod g-w dir1
+  309  chmod g+x dir1
+  310  ls -al
+  311  mkdir dir2
+  312  cd dir2
+  313  cd
+  314  cd foss/lab0325
+  315  chmod 700 .
+  316  ls -al
+  317  ps
+  318  ps -a
+  319  ps -l
+  320  ps -ael | grep 9218
+  321  sleep 10
+  322  slepp 5 ; echo "5 sec"
+  323  sleep 5 ; echo "5 sec"
+  324  sleep 5000
+  325  ps
+  326  sleep 5000 &
+  327  ls
+  328  ps
+  329  sleep 6000 &
+  330  ps
+  331  kill 11757
+  332  ps
+  333  kill %2
+  334  ps
+  335  sleep 8000
+  336  bg
+  337  jobs
+  338  fg %1
+  339  fg
+  340  logout
+  341  cd
+  342  cd foss
+  343  mkdir lab0329
+  344  ls -al
+  345  tar -c -f lab0329/backup-0315.tar lab0315
+  346  ls -al
+  347  tar -c -f -v lab0329/backup-0315.tar lab0315
+  348  cp -r lab0315 lab0315-cp
+  349  ls -la lab0315
+  350  ls -la lab0315-cp/
+  351  cp -r -a lab0315 lab0315-cp-a
+  352  ls -l lab0315-cp-a
+  353  ls -la
+  354  tar cvf lab0329/backup-lab0315.tar lab0315
+  355  cd lab0329
+  356  ls -al
+  357  rm backup-0315.tar
+  358  ls -al
+  359  cd foss
+  360  tar cvf lab0329/backup-lab0315.tar lab0315
+  361  cd lab0329
+  362  ls -al
+  363  tar tvf backup-lab0315.tar
+  364  ls 0la
+  365  ls -la
+  366  tar xvf backup-lab0315.tar
+  367  ls -al
+  368  du
+  369  ls -lh
+  370  du -h
+  371  gzip backup-lab0315.tar
+  372  ls -al
+  373  gunzip backup-lab0315.tar.gz
+  374  ls -al
+  375  tar xvfz test.ztar lab0315
+  376  tar cvfz test.ztar lab0315
+  377  ls -al
+  378  tar xvfz test.ztar
+  379  ls -la
+  380  which cd
+  381  ps
+  382  which bash
+  383  ls -l /bin/*sh
+  384  sh
+  385  ls -lal
+  386  echo Hi
+  387  echo -n Hi
+  388  echo -n "hi"
+  389  echo -n "hi" ; echo "hwanyong"
+  390  NAME=jinhyuk
+  391  echo NAME
+  392  echo $NAME
+  393  Name="asd"
+  394  echo $Name
+  395  echo $NAME
+  396  vi a.out
+  397  ls -al
+  398  a.out
+  399  cat a.out
+  400  ./a.out
+  401  chmod 755 a.out
+  402  ./a.out
+  403  cat a.out
+  404  echo $PATH
+  405  PATH="$PATH:."
+  406  echo $PATH
+  407  a.out
+  408  ls ; a.out ; sleep 1; echo "done"
+  409  a.out && ls
+  410  echo "1" && echo "2"
+  411  ls a.out
+  412  ls -l a.out
+  413  ls -l b.out
+  414  ls -l b.out 1> /dev/null
+  415  ls -l b.out 2> /dev/null
+  416  cp ../lab0315/hello.c .
+  417  ls -la
+  418  vi hello.c
+  419  cc hello.c
+  420  vi hello.c
+  421  cc hello.c
+  422  a.out
+  423  cat hello.c
+  424  ls -la
+  425  a.out
+  426  echo $?
+  427  a.out <<< 0
+  428  a.out <<< 0 ; echo $?
+  429  a.out <<< 55 ; echo $?
+  430  a.out <<< 155 ; echo $?
+  431  a.out <<< 2155 ; echo $?
+  432  python
+  433  a.out <<< 0 && a.out <<< 1
+  434  a.out <<< 1 && a.out <<< 0
+  435  a.out <<< 1 || a.out <<< 0
+  436  a.out <<< 0 || a.out <<< 1
+  437  logout
+  438  cd foss
+  439  mkdir lab 0401
+  440  cd 0401
+  441  man shopt
+  442  shopt --help
+  443  shopt
+  444  shopt -s histverify
+  445  history
+  446  echo "0401 lab start"
+  447  cd
+  448  cd foss
+  449  mkdir lab0401 ; cd lab0401
+  450  history
+  451  ls -al
+  452  history > hist.start
diff --git a/lab0401/lllls b/lab0401/lllls
new file mode 100755
index 0000000000000000000000000000000000000000..affca4d0a5e35290c2306e922a9d54c94da0243a
--- /dev/null
+++ b/lab0401/lllls
@@ -0,0 +1 @@
+ls -ali
diff --git a/lab0401/temp/0.c b/lab0401/temp/0.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/10.c b/lab0401/temp/10.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/100.c b/lab0401/temp/100.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/102.c b/lab0401/temp/102.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/104.c b/lab0401/temp/104.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/106.c b/lab0401/temp/106.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/108.c b/lab0401/temp/108.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/110.c b/lab0401/temp/110.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/112.c b/lab0401/temp/112.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/114.c b/lab0401/temp/114.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/116.c b/lab0401/temp/116.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/118.c b/lab0401/temp/118.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/12.c b/lab0401/temp/12.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/120.c b/lab0401/temp/120.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/122.c b/lab0401/temp/122.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/124.c b/lab0401/temp/124.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/126.c b/lab0401/temp/126.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/128.c b/lab0401/temp/128.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/130.c b/lab0401/temp/130.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/132.c b/lab0401/temp/132.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/134.c b/lab0401/temp/134.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/136.c b/lab0401/temp/136.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/138.c b/lab0401/temp/138.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/14.c b/lab0401/temp/14.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/140.c b/lab0401/temp/140.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/142.c b/lab0401/temp/142.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/144.c b/lab0401/temp/144.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/146.c b/lab0401/temp/146.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/148.c b/lab0401/temp/148.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/150.c b/lab0401/temp/150.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/152.c b/lab0401/temp/152.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/154.c b/lab0401/temp/154.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/156.c b/lab0401/temp/156.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/158.c b/lab0401/temp/158.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/16.c b/lab0401/temp/16.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/160.c b/lab0401/temp/160.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/162.c b/lab0401/temp/162.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/164.c b/lab0401/temp/164.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/166.c b/lab0401/temp/166.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/168.c b/lab0401/temp/168.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/170.c b/lab0401/temp/170.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/172.c b/lab0401/temp/172.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/174.c b/lab0401/temp/174.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/176.c b/lab0401/temp/176.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/178.c b/lab0401/temp/178.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/18.c b/lab0401/temp/18.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/180.c b/lab0401/temp/180.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/182.c b/lab0401/temp/182.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/184.c b/lab0401/temp/184.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/186.c b/lab0401/temp/186.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/188.c b/lab0401/temp/188.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/190.c b/lab0401/temp/190.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/192.c b/lab0401/temp/192.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/194.c b/lab0401/temp/194.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/196.c b/lab0401/temp/196.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/198.c b/lab0401/temp/198.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/2.c b/lab0401/temp/2.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/20.c b/lab0401/temp/20.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/200.c b/lab0401/temp/200.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/202.c b/lab0401/temp/202.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/204.c b/lab0401/temp/204.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/206.c b/lab0401/temp/206.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/208.c b/lab0401/temp/208.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/210.c b/lab0401/temp/210.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/212.c b/lab0401/temp/212.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/214.c b/lab0401/temp/214.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/216.c b/lab0401/temp/216.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/218.c b/lab0401/temp/218.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
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new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/886.c b/lab0401/temp/886.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/888.c b/lab0401/temp/888.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/890.c b/lab0401/temp/890.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/892.c b/lab0401/temp/892.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/894.c b/lab0401/temp/894.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/896.c b/lab0401/temp/896.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/898.c b/lab0401/temp/898.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/90.c b/lab0401/temp/90.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/900.c b/lab0401/temp/900.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/902.c b/lab0401/temp/902.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/904.c b/lab0401/temp/904.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/906.c b/lab0401/temp/906.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/908.c b/lab0401/temp/908.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/910.c b/lab0401/temp/910.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/912.c b/lab0401/temp/912.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/914.c b/lab0401/temp/914.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/916.c b/lab0401/temp/916.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/918.c b/lab0401/temp/918.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/92.c b/lab0401/temp/92.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/920.c b/lab0401/temp/920.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/922.c b/lab0401/temp/922.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/924.c b/lab0401/temp/924.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/926.c b/lab0401/temp/926.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/928.c b/lab0401/temp/928.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/930.c b/lab0401/temp/930.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/932.c b/lab0401/temp/932.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/934.c b/lab0401/temp/934.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/936.c b/lab0401/temp/936.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/938.c b/lab0401/temp/938.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/94.c b/lab0401/temp/94.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/940.c b/lab0401/temp/940.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/942.c b/lab0401/temp/942.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/944.c b/lab0401/temp/944.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/946.c b/lab0401/temp/946.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/948.c b/lab0401/temp/948.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/950.c b/lab0401/temp/950.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/952.c b/lab0401/temp/952.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/954.c b/lab0401/temp/954.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/956.c b/lab0401/temp/956.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/958.c b/lab0401/temp/958.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/96.c b/lab0401/temp/96.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/960.c b/lab0401/temp/960.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/962.c b/lab0401/temp/962.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/964.c b/lab0401/temp/964.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/966.c b/lab0401/temp/966.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/968.c b/lab0401/temp/968.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/970.c b/lab0401/temp/970.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/972.c b/lab0401/temp/972.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/974.c b/lab0401/temp/974.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/976.c b/lab0401/temp/976.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/978.c b/lab0401/temp/978.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/98.c b/lab0401/temp/98.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/980.c b/lab0401/temp/980.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/982.c b/lab0401/temp/982.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/984.c b/lab0401/temp/984.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/986.c b/lab0401/temp/986.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/988.c b/lab0401/temp/988.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/990.c b/lab0401/temp/990.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/992.c b/lab0401/temp/992.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/994.c b/lab0401/temp/994.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/996.c b/lab0401/temp/996.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0401/temp/998.c b/lab0401/temp/998.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0405/a b/lab0405/a
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0405/a.out b/lab0405/a.out
new file mode 100755
index 0000000000000000000000000000000000000000..a3c3cb5fc0b94aeaa0e9d22edacabbc121e30e6b
Binary files /dev/null and b/lab0405/a.out differ
diff --git a/lab0405/aa b/lab0405/aa
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0405/aaa b/lab0405/aaa
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0405/b b/lab0405/b
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0405/bb b/lab0405/bb
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0405/bbb b/lab0405/bbb
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0405/c b/lab0405/c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0405/cc b/lab0405/cc
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0405/ccc b/lab0405/ccc
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0405/hello.c b/lab0405/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..8539b5bdaa1e108caa040548e919e9e83032836f
--- /dev/null
+++ b/lab0405/hello.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+int main()
+{
+	int a;
+	fscanf(stdin, "%d",&a);
+	fprintf(stdout, "Hello Stdout %d\n",a);
+	fprintf(stderr, "Hello stderr %d\n",a+100);
+	return 0;
+}
diff --git a/lab0405/infile b/lab0405/infile
new file mode 100644
index 0000000000000000000000000000000000000000..1ed04e6badf82f0418a35ab3626ec461820bc5bb
--- /dev/null
+++ b/lab0405/infile
@@ -0,0 +1,7 @@
+100
+200
+300
+400
+500
+600
+700
diff --git a/lab0405/sum.sh b/lab0405/sum.sh
new file mode 100644
index 0000000000000000000000000000000000000000..9bfd4b2a05e6535a29ee828a5be57ec51065892c
--- /dev/null
+++ b/lab0405/sum.sh
@@ -0,0 +1,10 @@
+cat infile | while read a
+	do
+		sum=$(($sum+$a))
+		echo $sum
+	done
+	echo $sum
+
+
+
+
diff --git a/lab0405/zzzzz b/lab0405/zzzzz
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/a.out b/lab0408/a.out
new file mode 100755
index 0000000000000000000000000000000000000000..a4d456ed87854daa2f008da73466b3ee46ae0e87
Binary files /dev/null and b/lab0408/a.out differ
diff --git a/lab0408/hello.c b/lab0408/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..187a3600ee94db978a8ab0c66d588eef37c921f3
--- /dev/null
+++ b/lab0408/hello.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int main()
+{
+
+
+fprintf("Hello stdout");
+
diff --git a/lab0408/test/.aaa b/lab0408/test/.aaa
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa1.c b/lab0408/test/aaa1.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa10.c b/lab0408/test/aaa10.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa100.c b/lab0408/test/aaa100.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa11.c b/lab0408/test/aaa11.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa12.c b/lab0408/test/aaa12.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa13.c b/lab0408/test/aaa13.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa14.c b/lab0408/test/aaa14.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa15.c b/lab0408/test/aaa15.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa16.c b/lab0408/test/aaa16.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa17.c b/lab0408/test/aaa17.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa18.c b/lab0408/test/aaa18.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa19.c b/lab0408/test/aaa19.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa2.c b/lab0408/test/aaa2.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa20.c b/lab0408/test/aaa20.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa21.c b/lab0408/test/aaa21.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa22.c b/lab0408/test/aaa22.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa23.c b/lab0408/test/aaa23.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa24.c b/lab0408/test/aaa24.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa25.c b/lab0408/test/aaa25.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa26.c b/lab0408/test/aaa26.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa27.c b/lab0408/test/aaa27.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa28.c b/lab0408/test/aaa28.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa29.c b/lab0408/test/aaa29.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa3.c b/lab0408/test/aaa3.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa30.c b/lab0408/test/aaa30.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa31.c b/lab0408/test/aaa31.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa32.c b/lab0408/test/aaa32.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa33.c b/lab0408/test/aaa33.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa34.c b/lab0408/test/aaa34.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa35.c b/lab0408/test/aaa35.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa36.c b/lab0408/test/aaa36.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa37.c b/lab0408/test/aaa37.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa38.c b/lab0408/test/aaa38.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa39.c b/lab0408/test/aaa39.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa4.c b/lab0408/test/aaa4.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa40.c b/lab0408/test/aaa40.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa41.c b/lab0408/test/aaa41.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa42.c b/lab0408/test/aaa42.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa43.c b/lab0408/test/aaa43.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa44.c b/lab0408/test/aaa44.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa45.c b/lab0408/test/aaa45.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa46.c b/lab0408/test/aaa46.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa47.c b/lab0408/test/aaa47.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa48.c b/lab0408/test/aaa48.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa49.c b/lab0408/test/aaa49.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa5.c b/lab0408/test/aaa5.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa50.c b/lab0408/test/aaa50.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa51.c b/lab0408/test/aaa51.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa52.c b/lab0408/test/aaa52.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa53.c b/lab0408/test/aaa53.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa54.c b/lab0408/test/aaa54.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa55.c b/lab0408/test/aaa55.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa56.c b/lab0408/test/aaa56.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa57.c b/lab0408/test/aaa57.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa58.c b/lab0408/test/aaa58.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa59.c b/lab0408/test/aaa59.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa6.c b/lab0408/test/aaa6.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa60.c b/lab0408/test/aaa60.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa61.c b/lab0408/test/aaa61.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa62.c b/lab0408/test/aaa62.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa63.c b/lab0408/test/aaa63.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa64.c b/lab0408/test/aaa64.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa65.c b/lab0408/test/aaa65.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa66.c b/lab0408/test/aaa66.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa67.c b/lab0408/test/aaa67.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa68.c b/lab0408/test/aaa68.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa69.c b/lab0408/test/aaa69.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa7.c b/lab0408/test/aaa7.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa70.c b/lab0408/test/aaa70.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa71.c b/lab0408/test/aaa71.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa72.c b/lab0408/test/aaa72.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa73.c b/lab0408/test/aaa73.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa74.c b/lab0408/test/aaa74.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa75.c b/lab0408/test/aaa75.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa76.c b/lab0408/test/aaa76.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa77.c b/lab0408/test/aaa77.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa78.c b/lab0408/test/aaa78.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa79.c b/lab0408/test/aaa79.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa8.c b/lab0408/test/aaa8.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa80.c b/lab0408/test/aaa80.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa81.c b/lab0408/test/aaa81.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa82.c b/lab0408/test/aaa82.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa83.c b/lab0408/test/aaa83.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa84.c b/lab0408/test/aaa84.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa85.c b/lab0408/test/aaa85.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa86.c b/lab0408/test/aaa86.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa87.c b/lab0408/test/aaa87.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa88.c b/lab0408/test/aaa88.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa89.c b/lab0408/test/aaa89.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa9.c b/lab0408/test/aaa9.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa90.c b/lab0408/test/aaa90.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa91.c b/lab0408/test/aaa91.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa92.c b/lab0408/test/aaa92.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa93.c b/lab0408/test/aaa93.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa94.c b/lab0408/test/aaa94.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa95.c b/lab0408/test/aaa95.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa96.c b/lab0408/test/aaa96.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa97.c b/lab0408/test/aaa97.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa98.c b/lab0408/test/aaa98.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/aaa99.c b/lab0408/test/aaa99.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0408/test/fc.sh b/lab0408/test/fc.sh
new file mode 100755
index 0000000000000000000000000000000000000000..30131fbaef4a8f70e8ae222b42837ac707c48911
--- /dev/null
+++ b/lab0408/test/fc.sh
@@ -0,0 +1,11 @@
+# /bin/bash
+for i in {1..100} 
+do
+	 touch aaa${i}.c
+done
+
+for i in aaa5?.c
+do
+	echo mv $i ${i%c}java
+done
+
diff --git a/lab0408/today b/lab0408/today
new file mode 100644
index 0000000000000000000000000000000000000000..59fcf3cf93d1a5d725d31e083e132cda87acf042
--- /dev/null
+++ b/lab0408/today
@@ -0,0 +1 @@
+20220408
diff --git a/lab0412/file0000.c b/lab0412/file0000.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/file0000.sh b/lab0412/file0000.sh
new file mode 100644
index 0000000000000000000000000000000000000000..737f49f66049a53289bbbf6c08501e9c1707621e
--- /dev/null
+++ b/lab0412/file0000.sh
@@ -0,0 +1,8 @@
+#/bin/bash
+
+for i in {0..9} 
+do
+	touch `printf "file%04d.c\n" $i`
+	
+done
+
diff --git a/lab0412/file0001.c b/lab0412/file0001.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/file0002.c b/lab0412/file0002.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/file0003.c b/lab0412/file0003.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/file0004.c b/lab0412/file0004.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/file0005.c b/lab0412/file0005.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/file0006.c b/lab0412/file0006.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/file0007.c b/lab0412/file0007.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/file0008.c b/lab0412/file0008.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/file0009.c b/lab0412/file0009.c
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/filename b/lab0412/filename
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/filename2 b/lab0412/filename2
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0412/files b/lab0412/files
new file mode 100644
index 0000000000000000000000000000000000000000..e97f3ac329e8728b6b3dcf4666811079980fed6d
--- /dev/null
+++ b/lab0412/files
@@ -0,0 +1,18 @@
+file0000.c
+file0000.sh
+file0001.c
+file0002.c
+file0003.c
+file0004.c
+file0005.c
+file0006.c
+file0007.c
+file0008.c
+file0009.c
+filename
+filename2
+files
+sum1.sh
+sum2.sh
+sum3.sh
+sum.sh
diff --git a/lab0412/sum.sh b/lab0412/sum.sh
new file mode 100644
index 0000000000000000000000000000000000000000..a5dbd0cb7b8c6a8f9c2585e2729c1fafc6cc98cb
--- /dev/null
+++ b/lab0412/sum.sh
@@ -0,0 +1,9 @@
+#/bin/bash
+end=$1
+sum=0
+echo $0 $1 $2 $3
+for (( i=0 ; i<(($end)) ; i++ )); do
+	sum=$(($sum+$i));
+	
+done
+echo $((sum))
diff --git a/lab0412/sum1.sh b/lab0412/sum1.sh
new file mode 100644
index 0000000000000000000000000000000000000000..a5dbd0cb7b8c6a8f9c2585e2729c1fafc6cc98cb
--- /dev/null
+++ b/lab0412/sum1.sh
@@ -0,0 +1,9 @@
+#/bin/bash
+end=$1
+sum=0
+echo $0 $1 $2 $3
+for (( i=0 ; i<(($end)) ; i++ )); do
+	sum=$(($sum+$i));
+	
+done
+echo $((sum))
diff --git a/lab0412/sum2.sh b/lab0412/sum2.sh
new file mode 100644
index 0000000000000000000000000000000000000000..a5dbd0cb7b8c6a8f9c2585e2729c1fafc6cc98cb
--- /dev/null
+++ b/lab0412/sum2.sh
@@ -0,0 +1,9 @@
+#/bin/bash
+end=$1
+sum=0
+echo $0 $1 $2 $3
+for (( i=0 ; i<(($end)) ; i++ )); do
+	sum=$(($sum+$i));
+	
+done
+echo $((sum))
diff --git a/lab0412/sum3.sh b/lab0412/sum3.sh
new file mode 120000
index 0000000000000000000000000000000000000000..2ebde5ac9a63c136d5a8f7892a572da8d8a785f3
--- /dev/null
+++ b/lab0412/sum3.sh
@@ -0,0 +1 @@
+sum.sh
\ No newline at end of file
diff --git a/lab0415/aaa b/lab0415/aaa
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/lab0415/bbb b/lab0415/bbb
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/studentid b/studentid
new file mode 100644
index 0000000000000000000000000000000000000000..b82b0ef6bbc7c946da38972a9d4e96cb7afdb76f
--- /dev/null
+++ b/studentid
@@ -0,0 +1 @@
+JinHyuk Kim - 201520874