diff --git a/.gitignore b/.gitignore
index d00b33aa42e9a4c35543212777eb39b2273d5a47..b2e554b78223f9c6d37bba407b6a9af5c7634442 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,4 @@
-.object
+*.o
+*.out
+*.mp4
+*.mp3
diff --git a/foss_lab/lab0914/.h b/foss_lab/lab0914/.h
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/foss_lab/lab0914/file1 b/foss_lab/lab0914/file1
new file mode 100644
index 0000000000000000000000000000000000000000..4a2f088201e8afc6d01ac6aefcb8f80fda0286e9
--- /dev/null
+++ b/foss_lab/lab0914/file1
@@ -0,0 +1 @@
+asdjks
diff --git a/foss_lab/lab0914/slink b/foss_lab/lab0914/slink
new file mode 120000
index 0000000000000000000000000000000000000000..08219db9b0969fa29cf16fd04df4a63964da0b69
--- /dev/null
+++ b/foss_lab/lab0914/slink
@@ -0,0 +1 @@
+file1
\ No newline at end of file
diff --git a/foss_lab/lab0919/err.txt b/foss_lab/lab0919/err.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8dc6b7ce62ccedcbb8d5ed4aab92bfd2a5d32ec0
--- /dev/null
+++ b/foss_lab/lab0919/err.txt
@@ -0,0 +1 @@
+stderr: Hello 201823815 999
diff --git a/foss_lab/lab0919/hello.c b/foss_lab/lab0919/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..71b072e82b8460dd222f6953f35eadc32f1550ae
--- /dev/null
+++ b/foss_lab/lab0919/hello.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main()
+{
+ int a;
+ fscanf(stdin, "%d", &a);
+ fprintf(stdout,"stdout: Hello 201823815 %d\n", a);
+ fprintf(stderr, "stderr: Hello 201823815 %d\n", a);
+ return 0;
+
+}
+
diff --git a/foss_lab/lab0919/infile.txt b/foss_lab/lab0919/infile.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a6905f8ba447c0116590e38b2430151b506b1611
--- /dev/null
+++ b/foss_lab/lab0919/infile.txt
@@ -0,0 +1 @@
+999
diff --git a/foss_lab/lab0919/lsli b/foss_lab/lab0919/lsli
new file mode 100755
index 0000000000000000000000000000000000000000..24fc945f35af8169c90dc7fa9b41ff72aedf7395
--- /dev/null
+++ b/foss_lab/lab0919/lsli
@@ -0,0 +1 @@
+ -li ls
diff --git a/foss_lab/lab0919/out.text b/foss_lab/lab0919/out.text
new file mode 100644
index 0000000000000000000000000000000000000000..1fe635e3d076cf547591197db8c2b241218b1c9f
--- /dev/null
+++ b/foss_lab/lab0919/out.text
@@ -0,0 +1 @@
+stdout: Hello 201823815 999
diff --git a/foss_lab/lab0919/out.txt b/foss_lab/lab0919/out.txt
new file mode 100644
index 0000000000000000000000000000000000000000..090b480802843da7799fc8c25504d91d9c646884
--- /dev/null
+++ b/foss_lab/lab0919/out.txt
@@ -0,0 +1 @@
+stdout: Hello 201823815 32766
diff --git a/foss_lab/lab0921/1 b/foss_lab/lab0921/1
new file mode 100644
index 0000000000000000000000000000000000000000..d384d5acc7766a47f5cb09b44e888b55eb75d656
--- /dev/null
+++ b/foss_lab/lab0921/1
@@ -0,0 +1,2 @@
+stderr: Hello 201823815 888
+stdout: Hello 201823815 888
diff --git a/foss_lab/lab0921/all.txt b/foss_lab/lab0921/all.txt
new file mode 100644
index 0000000000000000000000000000000000000000..7f0114ae6293d94b8594060c91ef035ee31ec2e9
--- /dev/null
+++ b/foss_lab/lab0921/all.txt
@@ -0,0 +1,2 @@
+stderr: Hello 201823815 1111
+stdout: Hello 201823815 1111
diff --git a/foss_lab/lab0921/errfile b/foss_lab/lab0921/errfile
new file mode 100644
index 0000000000000000000000000000000000000000..0033576cc7ca1b9f6a854bdbf3eebb300fc65a21
--- /dev/null
+++ b/foss_lab/lab0921/errfile
@@ -0,0 +1 @@
+stderr: Hello 201823815 9899
diff --git a/foss_lab/lab0921/hello.c b/foss_lab/lab0921/hello.c
new file mode 100755
index 0000000000000000000000000000000000000000..71b072e82b8460dd222f6953f35eadc32f1550ae
--- /dev/null
+++ b/foss_lab/lab0921/hello.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main()
+{
+ int a;
+ fscanf(stdin, "%d", &a);
+ fprintf(stdout,"stdout: Hello 201823815 %d\n", a);
+ fprintf(stderr, "stderr: Hello 201823815 %d\n", a);
+ return 0;
+
+}
+
diff --git a/foss_lab/lab0921/infile9899 b/foss_lab/lab0921/infile9899
new file mode 100755
index 0000000000000000000000000000000000000000..55223f1554dc1c8360a5236cdf00471124a35e77
--- /dev/null
+++ b/foss_lab/lab0921/infile9899
@@ -0,0 +1 @@
+9899
diff --git a/foss_lab/lab0921/lsli b/foss_lab/lab0921/lsli
new file mode 100755
index 0000000000000000000000000000000000000000..24fc945f35af8169c90dc7fa9b41ff72aedf7395
--- /dev/null
+++ b/foss_lab/lab0921/lsli
@@ -0,0 +1 @@
+ -li ls
diff --git a/foss_lab/lab0921/out1 b/foss_lab/lab0921/out1
new file mode 100755
index 0000000000000000000000000000000000000000..04689d920daef584460f2c10394a8e7bdedf2c2d
--- /dev/null
+++ b/foss_lab/lab0921/out1
@@ -0,0 +1 @@
+stdout: Hello 201823815 88888
diff --git a/foss_lab/lab0921/outfile1 b/foss_lab/lab0921/outfile1
new file mode 100644
index 0000000000000000000000000000000000000000..e46107a30eecde201903a18de515a5b538e017cb
--- /dev/null
+++ b/foss_lab/lab0921/outfile1
@@ -0,0 +1 @@
+stdout: Hello 201823815 9899
diff --git a/foss_lab/lab0926/20161002 b/foss_lab/lab0926/20161002
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/foss_lab/lab0926/err.txt b/foss_lab/lab0926/err.txt
new file mode 100644
index 0000000000000000000000000000000000000000..8dc6b7ce62ccedcbb8d5ed4aab92bfd2a5d32ec0
--- /dev/null
+++ b/foss_lab/lab0926/err.txt
@@ -0,0 +1 @@
+stderr: Hello 201823815 999
diff --git a/foss_lab/lab0926/hello.c b/foss_lab/lab0926/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..71b072e82b8460dd222f6953f35eadc32f1550ae
--- /dev/null
+++ b/foss_lab/lab0926/hello.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main()
+{
+ int a;
+ fscanf(stdin, "%d", &a);
+ fprintf(stdout,"stdout: Hello 201823815 %d\n", a);
+ fprintf(stderr, "stderr: Hello 201823815 %d\n", a);
+ return 0;
+
+}
+
diff --git a/foss_lab/lab0926/hlink b/foss_lab/lab0926/hlink
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/foss_lab/lab0926/infile.txt b/foss_lab/lab0926/infile.txt
new file mode 100644
index 0000000000000000000000000000000000000000..a6905f8ba447c0116590e38b2430151b506b1611
--- /dev/null
+++ b/foss_lab/lab0926/infile.txt
@@ -0,0 +1 @@
+999
diff --git a/foss_lab/lab0926/lsli b/foss_lab/lab0926/lsli
new file mode 100755
index 0000000000000000000000000000000000000000..24fc945f35af8169c90dc7fa9b41ff72aedf7395
--- /dev/null
+++ b/foss_lab/lab0926/lsli
@@ -0,0 +1 @@
+ -li ls
diff --git a/foss_lab/lab0926/out.text b/foss_lab/lab0926/out.text
new file mode 100644
index 0000000000000000000000000000000000000000..1fe635e3d076cf547591197db8c2b241218b1c9f
--- /dev/null
+++ b/foss_lab/lab0926/out.text
@@ -0,0 +1 @@
+stdout: Hello 201823815 999
diff --git a/foss_lab/lab0926/out.txt b/foss_lab/lab0926/out.txt
new file mode 100644
index 0000000000000000000000000000000000000000..090b480802843da7799fc8c25504d91d9c646884
--- /dev/null
+++ b/foss_lab/lab0926/out.txt
@@ -0,0 +1 @@
+stdout: Hello 201823815 32766
diff --git a/foss_lab/lab0926/slink b/foss_lab/lab0926/slink
new file mode 120000
index 0000000000000000000000000000000000000000..1e6770a4a7f2103d6b8f467a3dd6f940d5f5f348
--- /dev/null
+++ b/foss_lab/lab0926/slink
@@ -0,0 +1 @@
+20161002
\ No newline at end of file
diff --git a/foss_lab/lab0928/.aaa b/foss_lab/lab0928/.aaa
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/foss_lab/lab0928/aaa b/foss_lab/lab0928/aaa
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/foss_lab/lab0928/err b/foss_lab/lab0928/err
new file mode 100644
index 0000000000000000000000000000000000000000..e1dc2e36735380265c66ea2fe411de682f91292f
--- /dev/null
+++ b/foss_lab/lab0928/err
@@ -0,0 +1 @@
+ls: cannot access 'b.out': No such file or directory
diff --git a/foss_lab/lab0928/he3 b/foss_lab/lab0928/he3
new file mode 100644
index 0000000000000000000000000000000000000000..f10e8adfafff2af0ed5e7a23d3dde8e158be8408
--- /dev/null
+++ b/foss_lab/lab0928/he3
@@ -0,0 +1,36 @@
+#include <stdio.h>
+
+int main()
+{
+ int a;
+ fscanf(stdin, "%d", &a);
+ fprintf(stdout,"stdout: Hello 201823815 %d\n", a);
+ fprintf(stderr, "stderr: Hello 201823815 %d\n", a);
+ return 0;
+
+}
+
+#include <stdio.h>
+
+int main()
+{
+ int a;
+ fscanf(stdin, "%d", &a);
+ fprintf(stdout,"stdout: Hello 201823815 %d\n", a);
+ fprintf(stderr, "stderr: Hello 201823815 %d\n", a);
+ return 0;
+
+}
+
+#include <stdio.h>
+
+int main()
+{
+ int a;
+ fscanf(stdin, "%d", &a);
+ fprintf(stdout,"stdout: Hello 201823815 %d\n", a);
+ fprintf(stderr, "stderr: Hello 201823815 %d\n", a);
+ return 0;
+
+}
+
diff --git a/foss_lab/lab0928/hello.c b/foss_lab/lab0928/hello.c
new file mode 100644
index 0000000000000000000000000000000000000000..71b072e82b8460dd222f6953f35eadc32f1550ae
--- /dev/null
+++ b/foss_lab/lab0928/hello.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main()
+{
+ int a;
+ fscanf(stdin, "%d", &a);
+ fprintf(stdout,"stdout: Hello 201823815 %d\n", a);
+ fprintf(stderr, "stderr: Hello 201823815 %d\n", a);
+ return 0;
+
+}
+
diff --git a/foss_lab/lab0928/who.result b/foss_lab/lab0928/who.result
new file mode 100644
index 0000000000000000000000000000000000000000..83db05d6b609d70bfc98359c292aa2bf0db57a40
--- /dev/null
+++ b/foss_lab/lab0928/who.result
@@ -0,0 +1,68 @@
+oss035 pts/0 2022-09-28 08:46 (175.195.197.178)
+oss191 pts/1 2022-09-28 08:47 (125.132.26.98)
+oss078 pts/2 2022-09-28 08:50 (117.111.14.114)
+oss066 pts/3 2022-09-28 09:28 (119.194.123.16)
+oss003 pts/5 2022-09-28 08:54 (175.195.197.186)
+oss055 pts/7 2022-09-28 08:54 (175.195.197.185)
+oss046 pts/8 2022-09-28 08:56 (175.195.197.185)
+oss045 pts/10 2022-09-28 08:56 (221.162.120.62)
+oss026 pts/12 2022-09-28 08:57 (118.235.13.199)
+oss089 pts/14 2022-09-28 09:53 (61.83.155.91)
+oss021 pts/15 2022-09-28 08:57 (175.195.197.186)
+oss067 pts/16 2022-09-28 08:58 (221.162.120.62)
+oss006 pts/17 2022-09-28 08:58 (221.162.120.62)
+oss004 pts/18 2022-09-28 08:58 (175.195.197.176)
+oss073 pts/20 2022-09-28 08:58 (175.195.197.180)
+oss015 pts/21 2022-09-28 08:58 (221.162.120.62)
+oss054 pts/22 2022-09-28 08:58 (221.162.120.62)
+oss087 pts/23 2022-09-28 08:58 (175.195.197.182)
+oss059 pts/24 2022-09-28 09:49 (221.162.120.62)
+oss060 pts/25 2022-09-28 08:58 (221.162.120.62)
+oss037 pts/26 2022-09-28 08:58 (221.162.120.62)
+oss086 pts/27 2022-09-28 09:56 (221.162.120.62)
+oss051 pts/28 2022-09-28 08:58 (175.195.197.182)
+oss016 pts/29 2022-09-28 08:59 (221.162.120.62)
+oss081 pts/31 2022-09-28 08:59 (221.162.120.62)
+oss061 pts/32 2022-09-28 08:59 (221.162.120.62)
+oss088 pts/33 2022-09-28 08:59 (175.195.197.182)
+oss022 pts/34 2022-09-28 08:59 (175.195.197.185)
+oss071 pts/35 2022-09-28 08:59 (221.162.120.62)
+oss000 pts/36 2022-09-28 08:59 (202.30.12.186)
+oss017 pts/37 2022-09-28 09:01 (175.195.197.185)
+oss005 pts/38 2022-09-28 08:59 (175.195.197.186)
+oss068 pts/39 2022-09-28 09:00 (221.162.120.62)
+oss028 pts/40 2022-09-28 09:00 (221.162.120.62)
+oss057 pts/41 2022-09-28 09:00 (180.226.19.211)
+oss012 pts/42 2022-09-28 09:00 (175.195.197.180)
+oss024 pts/43 2022-09-28 09:00 (223.62.162.164)
+oss075 pts/44 2022-09-28 09:01 (221.162.120.62)
+oss077 pts/45 2022-09-28 09:01 (221.162.120.62)
+oss063 pts/46 2022-09-28 09:01 (175.195.197.176)
+oss044 pts/47 2022-09-28 09:01 (221.162.120.62)
+oss090 pts/48 2022-09-28 09:50 (221.162.120.62)
+oss050 pts/49 2022-09-28 09:02 (175.195.197.176)
+oss092 pts/50 2022-09-28 09:49 (175.195.197.185)
+oss029 pts/51 2022-09-28 09:02 (175.195.197.176)
+oss047 pts/52 2022-09-28 09:02 (221.162.120.62)
+oss032 pts/53 2022-09-28 09:02 (106.101.2.36)
+oss065 pts/54 2022-09-28 09:02 (221.162.120.62)
+oss058 pts/55 2022-09-28 09:02 (175.195.197.186)
+oss043 pts/56 2022-09-28 09:02 (175.195.197.177)
+oss053 pts/57 2022-09-28 09:02 (175.195.197.177)
+oss023 pts/58 2022-09-28 09:53 (175.195.197.186)
+oss036 pts/59 2022-09-28 09:02 (121.168.51.162)
+oss008 pts/60 2022-09-28 09:02 (221.162.120.62)
+oss080 pts/61 2022-09-28 09:03 (221.162.120.62)
+oss010 pts/62 2022-09-28 09:03 (175.195.197.180)
+oss034 pts/63 2022-09-28 09:03 (175.195.197.176)
+oss020 pts/64 2022-09-28 09:03 (223.38.24.165)
+oss080 pts/65 2022-09-28 09:03 (221.162.120.62)
+oss056 pts/66 2022-09-28 09:03 (221.162.120.62)
+oss048 pts/67 2022-09-28 09:04 (175.195.197.187)
+oss014 pts/68 2022-09-28 09:54 (223.38.81.84)
+oss070 pts/70 2022-09-28 09:10 (221.162.120.62)
+oss025 pts/71 2022-09-28 09:15 (175.195.197.180)
+oss074 pts/72 2022-09-28 09:44 (221.162.120.62)
+oss049 pts/73 2022-09-28 09:34 (221.162.120.62)
+oss026 pts/74 2022-09-28 09:35 (118.235.4.56)
+oss052 pts/75 2022-09-28 09:37 (121.169.44.61)
diff --git a/foss_lab/lab0928/xaa b/foss_lab/lab0928/xaa
new file mode 100644
index 0000000000000000000000000000000000000000..93bf96fb976a1c8eb771f87ea2ce3411fcbe342e
--- /dev/null
+++ b/foss_lab/lab0928/xaa
@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+int main()
+{
+ int a;
+ fscanf(stdin, "%d", &a);
+ fprintf(stdout,"stdout: Hello 201823815 %d\n", a);
+ fprintf(stderr, "stderr: Hello 201823815 %d\n", a);
+ return 0;
+
diff --git a/foss_lab/lab0928/xab b/foss_lab/lab0928/xab
new file mode 100644
index 0000000000000000000000000000000000000000..1c5e30a14eea1e38a5e6c8ca23744dea37f4054a
--- /dev/null
+++ b/foss_lab/lab0928/xab
@@ -0,0 +1,10 @@
+}
+
+#include <stdio.h>
+
+int main()
+{
+ int a;
+ fscanf(stdin, "%d", &a);
+ fprintf(stdout,"stdout: Hello 201823815 %d\n", a);
+ fprintf(stderr, "stderr: Hello 201823815 %d\n", a);
diff --git a/foss_lab/lab0928/xac b/foss_lab/lab0928/xac
new file mode 100644
index 0000000000000000000000000000000000000000..a2b4d832a9e5f1580dc8d837b5e9f18f4a403e2f
--- /dev/null
+++ b/foss_lab/lab0928/xac
@@ -0,0 +1,10 @@
+ return 0;
+
+}
+
+#include <stdio.h>
+
+int main()
+{
+ int a;
+ fscanf(stdin, "%d", &a);
diff --git a/foss_lab/lab0928/xad b/foss_lab/lab0928/xad
new file mode 100644
index 0000000000000000000000000000000000000000..fd64d645572118594f6851eafd4090d8d9b0862e
--- /dev/null
+++ b/foss_lab/lab0928/xad
@@ -0,0 +1,6 @@
+ fprintf(stdout,"stdout: Hello 201823815 %d\n", a);
+ fprintf(stderr, "stderr: Hello 201823815 %d\n", a);
+ return 0;
+
+}
+
diff --git a/foss_lab/lab1005/hello.sh b/foss_lab/lab1005/hello.sh
new file mode 100644
index 0000000000000000000000000000000000000000..907c16dd394267f791ea96a42b61383c069e19ef
--- /dev/null
+++ b/foss_lab/lab1005/hello.sh
@@ -0,0 +1,6 @@
+#! /bin/bash
+NAME="Gwak Youngil"
+echo "Hello $NAME!"
+echo 'Hello $NAME'
+ps
+
diff --git a/foss_lab/lab1012/hello.sh b/foss_lab/lab1012/hello.sh
new file mode 100644
index 0000000000000000000000000000000000000000..acad52eb94a3fc35a743a3c03b17591068be6a72
--- /dev/null
+++ b/foss_lab/lab1012/hello.sh
@@ -0,0 +1,4 @@
+#! /bin/bash
+NAME="Yongil Gwak"
+echo $NAME
+echo $# : $0 : $1 : $2 : $3