From 7605ea416d7e78f9f26ae81256a43b7393a11216 Mon Sep 17 00:00:00 2001
From: KeZekuan <715480954@qq.com>
Date: Sat, 2 Apr 2016 22:18:49 +0800
Subject: [PATCH 1/5] =?UTF-8?q?=E8=AF=B7=E9=97=AE=E4=B8=8D=E9=9C=80?=
 =?UTF-8?q?=E8=A6=81=E5=AE=9E=E7=8E=B0=E5=8A=9F=E8=83=BD=E5=90=97=3F?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 assignments/shell/AddUsers/addUsers.sh | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)
 mode change 100644 => 100755 assignments/shell/AddUsers/addUsers.sh

diff --git a/assignments/shell/AddUsers/addUsers.sh b/assignments/shell/AddUsers/addUsers.sh
old mode 100644
new mode 100755
index 2905c24..7996aa4
--- a/assignments/shell/AddUsers/addUsers.sh
+++ b/assignments/shell/AddUsers/addUsers.sh
@@ -1,9 +1,14 @@
-#
-#
-# useradd
-# chpasswd
-# chown
-# chmod
-# edquota
-#
-
+#!/usr/bin/env bash
+# useradd
+# chpasswd
+# chown
+# chmod
+# edquota
+#
+#~ case $1 in
+    #~ "add" ) echo 233;;
+    #~ "rm") 
+    #~ "chpwd")
+    #~ 
+    #~ *) echo "Unknown arguments.";;
+#~ esac

From cf5ebda48c61a1b44b6ea255b0248a5349485efe Mon Sep 17 00:00:00 2001
From: KeZekuan <715480954@qq.com>
Date: Mon, 18 Apr 2016 17:05:26 +0800
Subject: [PATCH 2/5] =?UTF-8?q?=E5=BC=BA=E8=A1=8C=E6=94=B9=E4=B8=80?=
 =?UTF-8?q?=E4=B8=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 assignments/shell/AddUsers/addUsers.sh | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/assignments/shell/AddUsers/addUsers.sh b/assignments/shell/AddUsers/addUsers.sh
index 7996aa4..ed8d877 100755
--- a/assignments/shell/AddUsers/addUsers.sh
+++ b/assignments/shell/AddUsers/addUsers.sh
@@ -5,10 +5,13 @@
 # chmod
 # edquota
 #
-#~ case $1 in
-    #~ "add" ) echo 233;;
-    #~ "rm") 
-    #~ "chpwd")
-    #~ 
-    #~ *) echo "Unknown arguments.";;
-#~ esac
+case $1 in
+    "add" )
+        echo "ad here"
+        ;;
+    "rm")
+        ;;
+    "chpwd")
+        ;;
+    *) echo "Unknown arguments.";;
+esac

From aa20749090f193bba644f98fefdb1df73f131153 Mon Sep 17 00:00:00 2001
From: KeZekuan <715480954@qq.com>
Date: Mon, 18 Apr 2016 18:10:36 +0800
Subject: [PATCH 3/5] I forgot what I have done

---
 assignments/shell/AddUsers/addUsers.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/assignments/shell/AddUsers/addUsers.sh b/assignments/shell/AddUsers/addUsers.sh
index ed8d877..806c357 100755
--- a/assignments/shell/AddUsers/addUsers.sh
+++ b/assignments/shell/AddUsers/addUsers.sh
@@ -7,7 +7,7 @@
 #
 case $1 in
     "add" )
-        echo "ad here"
+        echo "add here"
         ;;
     "rm")
         ;;

From de78adba49d879c617b1812deb0708eadfffb374 Mon Sep 17 00:00:00 2001
From: KeZekuan <715480954@qq.com>
Date: Fri, 27 May 2016 21:45:10 +0800
Subject: [PATCH 4/5] Basically done?

---
 assignments/shell/AddUsers/addUsers.sh | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/assignments/shell/AddUsers/addUsers.sh b/assignments/shell/AddUsers/addUsers.sh
index 806c357..f357a4b 100755
--- a/assignments/shell/AddUsers/addUsers.sh
+++ b/assignments/shell/AddUsers/addUsers.sh
@@ -6,12 +6,12 @@
 # edquota
 #
 case $1 in
-    "add" )
-        echo "add here"
-        ;;
-    "rm")
-        ;;
-    "chpwd")
-        ;;
-    *) echo "Unknown arguments.";;
+    'clean') for u in $(cat users.txt)
+            do sudo userdel $u
+        done
+    ;;
+    *) for u in $(cat users.txt)
+            do sudo useradd $u
+        done
+    ;;
 esac

From 913a4807823bce52d5a77eed175184702d2c281a Mon Sep 17 00:00:00 2001
From: KeZekuan <715480954@qq.com>
Date: Fri, 27 May 2016 21:46:15 +0800
Subject: [PATCH 5/5] 233

---
 experiments/gcc-1-hello-world/main.c          |  6 ----
 experiments/gcc-2-multi-source/calculator.c   | 17 ---------
 .../gcc-2-multi-source/include/calculator.h   |  6 ----
 experiments/gcc-2-multi-source/main.c         | 12 -------
 experiments/gcc-3-real-project/Makefile       |  9 -----
 experiments/gcc-3-real-project/calculator.c   | 17 ---------
 .../gcc-3-real-project/include/calculator.h   |  9 -----
 experiments/gcc-3-real-project/main.c         | 14 --------
 experiments/gcc-4-optimize/Makefile           | 36 -------------------
 experiments/gcc-4-optimize/array.c            | 26 --------------
 experiments/gcc-4-optimize/calculator.c       | 17 ---------
 experiments/gcc-4-optimize/include/array.h    |  9 -----
 .../gcc-4-optimize/include/calculator.h       |  9 -----
 experiments/gcc-4-optimize/main.c             | 32 -----------------
 experiments/gcc-5-gdb/Makefile                | 33 -----------------
 experiments/gcc-5-gdb/array.c                 | 26 --------------
 experiments/gcc-5-gdb/include/array.h         |  9 -----
 experiments/gcc-5-gdb/main.c                  | 24 -------------
 18 files changed, 311 deletions(-)
 delete mode 100644 experiments/gcc-1-hello-world/main.c
 delete mode 100644 experiments/gcc-2-multi-source/calculator.c
 delete mode 100644 experiments/gcc-2-multi-source/include/calculator.h
 delete mode 100644 experiments/gcc-2-multi-source/main.c
 delete mode 100644 experiments/gcc-3-real-project/Makefile
 delete mode 100644 experiments/gcc-3-real-project/calculator.c
 delete mode 100644 experiments/gcc-3-real-project/include/calculator.h
 delete mode 100644 experiments/gcc-3-real-project/main.c
 delete mode 100644 experiments/gcc-4-optimize/Makefile
 delete mode 100644 experiments/gcc-4-optimize/array.c
 delete mode 100644 experiments/gcc-4-optimize/calculator.c
 delete mode 100644 experiments/gcc-4-optimize/include/array.h
 delete mode 100644 experiments/gcc-4-optimize/include/calculator.h
 delete mode 100644 experiments/gcc-4-optimize/main.c
 delete mode 100644 experiments/gcc-5-gdb/Makefile
 delete mode 100644 experiments/gcc-5-gdb/array.c
 delete mode 100644 experiments/gcc-5-gdb/include/array.h
 delete mode 100644 experiments/gcc-5-gdb/main.c

diff --git a/experiments/gcc-1-hello-world/main.c b/experiments/gcc-1-hello-world/main.c
deleted file mode 100644
index abfd4b3..0000000
--- a/experiments/gcc-1-hello-world/main.c
+++ /dev/null
@@ -1,6 +0,0 @@
-#include <stdio.h>
-
-int main(void) {
-	printf("Hello world!\n");
-	return 0;
-}
diff --git a/experiments/gcc-2-multi-source/calculator.c b/experiments/gcc-2-multi-source/calculator.c
deleted file mode 100644
index 391fc7f..0000000
--- a/experiments/gcc-2-multi-source/calculator.c
+++ /dev/null
@@ -1,17 +0,0 @@
-#include "include/calculator.h"
-
-int sum(int x, int y) {
-	return x + y;
-}
-
-int subtract(int x, int y) {
-	return x - y;
-}
-
-int multiply(int x, int y) {
-	return x * y;
-}
-
-int divide(int x, int divisor) {
-	return x / divisor;
-}
diff --git a/experiments/gcc-2-multi-source/include/calculator.h b/experiments/gcc-2-multi-source/include/calculator.h
deleted file mode 100644
index 7daefe5..0000000
--- a/experiments/gcc-2-multi-source/include/calculator.h
+++ /dev/null
@@ -1,6 +0,0 @@
-
-int sum(int x, int y);
-int subtract(int x, int y);
-int multiply(int x, int y);
-int divide(int x, int divisor);
-
diff --git a/experiments/gcc-2-multi-source/main.c b/experiments/gcc-2-multi-source/main.c
deleted file mode 100644
index bdbb5b9..0000000
--- a/experiments/gcc-2-multi-source/main.c
+++ /dev/null
@@ -1,12 +0,0 @@
-#include <stdio.h>
-
-int main(void) {
-	int x, y;
-	
-	x = 2;
-	y = 3;
-
-	printf("%d + %d = %d\n", x, y, sum(2, 3));
-
-	return 0;
-}
diff --git a/experiments/gcc-3-real-project/Makefile b/experiments/gcc-3-real-project/Makefile
deleted file mode 100644
index 0531065..0000000
--- a/experiments/gcc-3-real-project/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-main:main.o calculator.o
-	gcc main.o calculator.o -o main
-main.o:main.c
-	gcc -c main.c
-calculator.o:calculator.c
-	gcc -c calculator.c
-
-clean:
-	rm main *.o
diff --git a/experiments/gcc-3-real-project/calculator.c b/experiments/gcc-3-real-project/calculator.c
deleted file mode 100644
index 391fc7f..0000000
--- a/experiments/gcc-3-real-project/calculator.c
+++ /dev/null
@@ -1,17 +0,0 @@
-#include "include/calculator.h"
-
-int sum(int x, int y) {
-	return x + y;
-}
-
-int subtract(int x, int y) {
-	return x - y;
-}
-
-int multiply(int x, int y) {
-	return x * y;
-}
-
-int divide(int x, int divisor) {
-	return x / divisor;
-}
diff --git a/experiments/gcc-3-real-project/include/calculator.h b/experiments/gcc-3-real-project/include/calculator.h
deleted file mode 100644
index a5e00e3..0000000
--- a/experiments/gcc-3-real-project/include/calculator.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _CALC_H
-#define _CALC_H
-
-int sum(int x, int y);
-int subtract(int x, int y);
-int multiply(int x, int y);
-int divide(int x, int divisor);
-
-#endif //_CALC_H
diff --git a/experiments/gcc-3-real-project/main.c b/experiments/gcc-3-real-project/main.c
deleted file mode 100644
index 6798996..0000000
--- a/experiments/gcc-3-real-project/main.c
+++ /dev/null
@@ -1,14 +0,0 @@
-#include <stdio.h>
-
-#include "include/calculator.h"
-
-int main(void) {
-	int x, y;
-	
-	x = 2;
-	y = 3;
-
-	printf("%d - %d = %d\n", x, y, subtract(2, 3));
-
-	return 0;
-}
diff --git a/experiments/gcc-4-optimize/Makefile b/experiments/gcc-4-optimize/Makefile
deleted file mode 100644
index 121d85a..0000000
--- a/experiments/gcc-4-optimize/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-result:main array calculator
-	gcc main.o array.o calculator.o -o result
-
-main: main_clean main.c
-	gcc -c -O0 main.c
-main_optimize: main_clean main.c
-	gcc -c -O2 main.c
-main_clean:
-	if [ -e main.o ] ; then rm main.o ; fi
-	
-
-calculator:calculator.c
-	gcc -c calculator.c
-
-array: array_clean array.c
-	gcc -c -O0 array.c
-array_optimize: array_clean array.c
-	gcc -c -O2 array.c
-array_clean:
-	if [ -e array.o ] ; then rm array.o ; fi
-	
-
-release: main_optimize array_optimize calculator
-	gcc main.o array.o -o release
-
-diff: result release
-	./result
-	./release
-
-clean:
-	if [ -e result ] ; then rm result ; fi
-
-	if [ -e release ] ; then rm release ; fi
-
-	rm *.o
-
diff --git a/experiments/gcc-4-optimize/array.c b/experiments/gcc-4-optimize/array.c
deleted file mode 100644
index e92db61..0000000
--- a/experiments/gcc-4-optimize/array.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include <stdio.h>
-
-#include "include/array.h"
-
-void array_fill_with(int *array, int length, int fillWith) {
-	int i;
-	for (i = 0; i < length; i++) {
-		array[i] = fillWith;
-	}
-}
-
-void array_add(int *arrayX, int *arrayY, int *arrayZ, int length) {
-	int i;
-	for (i = 0; i < length; i++) {
-		arrayZ[i] = arrayX[i] + arrayY[i];
-	}
-}
-
-void array_print(int *array, int length) {
-	int i;
-	for (i =0; i < length; i++) {
-		printf("%d\t", array[i]);
-	}
-	
-	printf("\n");
-}
diff --git a/experiments/gcc-4-optimize/calculator.c b/experiments/gcc-4-optimize/calculator.c
deleted file mode 100644
index 391fc7f..0000000
--- a/experiments/gcc-4-optimize/calculator.c
+++ /dev/null
@@ -1,17 +0,0 @@
-#include "include/calculator.h"
-
-int sum(int x, int y) {
-	return x + y;
-}
-
-int subtract(int x, int y) {
-	return x - y;
-}
-
-int multiply(int x, int y) {
-	return x * y;
-}
-
-int divide(int x, int divisor) {
-	return x / divisor;
-}
diff --git a/experiments/gcc-4-optimize/include/array.h b/experiments/gcc-4-optimize/include/array.h
deleted file mode 100644
index 3f079f4..0000000
--- a/experiments/gcc-4-optimize/include/array.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _ARRAY_H
-#define _ARRAY_H
-
-void array_fill_with(int *array, int length, int fillWith);
-void array_print(int *array, int length);
-
-void array_add(int *arrayX, int *arrayY, int *arrayZ, int length);
-
-#endif
diff --git a/experiments/gcc-4-optimize/include/calculator.h b/experiments/gcc-4-optimize/include/calculator.h
deleted file mode 100644
index a5e00e3..0000000
--- a/experiments/gcc-4-optimize/include/calculator.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _CALC_H
-#define _CALC_H
-
-int sum(int x, int y);
-int subtract(int x, int y);
-int multiply(int x, int y);
-int divide(int x, int divisor);
-
-#endif //_CALC_H
diff --git a/experiments/gcc-4-optimize/main.c b/experiments/gcc-4-optimize/main.c
deleted file mode 100644
index 7f314ff..0000000
--- a/experiments/gcc-4-optimize/main.c
+++ /dev/null
@@ -1,32 +0,0 @@
-#include <stdio.h>
-#include <time.h>
-
-#include "include/calculator.h"
-
-#include "include/array.h"
-
-#define VECTOR_LENGTH 2048
-
-int main(void) {
-
-	int vector_a[VECTOR_LENGTH], vector_b[VECTOR_LENGTH], vector_c[VECTOR_LENGTH];
-
-	double time_start, time_end;	
-	array_fill_with(vector_a, VECTOR_LENGTH, 10);
-	array_fill_with(vector_b, VECTOR_LENGTH, 55);
-
-	time_start = clock();
-	
-	array_add(vector_a, vector_b, vector_c, VECTOR_LENGTH);
-
-	time_end = clock();
-
-	//array_print(vector_c, VECTOR_LENGTH);
-	
-	printf("Time used: %10.9f\n", (double) ( (time_end - time_start) / 1000.0) );
-
-	return 0;
-}
-
-
-
diff --git a/experiments/gcc-5-gdb/Makefile b/experiments/gcc-5-gdb/Makefile
deleted file mode 100644
index a49a825..0000000
--- a/experiments/gcc-5-gdb/Makefile
+++ /dev/null
@@ -1,33 +0,0 @@
-result:main array
-	gcc main.o array.o -o result
-
-main: main_clean main.c
-	gcc -c -O0 main.c
-main_optimize: main_clean main.c
-	gcc -c -O2 main.c
-main_clean:
-	if [ -e main.o ] ; then rm main.o ; fi
-	
-
-array: array_clean array.c
-	gcc -c -O0 array.c
-array_optimize: array_clean array.c
-	gcc -c -O2 array.c
-array_clean:
-	if [ -e array.o ] ; then rm array.o ; fi
-	
-
-release: main_optimize array_optimize
-	gcc main.o array.o -o release
-
-diff: result release
-	./result
-	./release
-
-clean:
-	if [ -e result ] ; then rm result ; fi
-
-	if [ -e release ] ; then rm release ; fi
-
-	rm *.o
-
diff --git a/experiments/gcc-5-gdb/array.c b/experiments/gcc-5-gdb/array.c
deleted file mode 100644
index f12c568..0000000
--- a/experiments/gcc-5-gdb/array.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include <stdio.h>
-
-#include "include/array.h"
-
-void array_fill_with(int *array, int length, int fillWith) {
-	int i;
-	for (i = 0; i <= length; i++) {
-		array[i] = fillWith;
-	}
-}
-
-void array_add(int *arrayX, int *arrayY, int *arrayZ, int length) {
-	int i;
-	for (i = 0; i <= length; i++) {
-		arrayZ[i] = arrayX[i] + arrayY[i];
-	}
-}
-
-void array_print(int *array, int length) {
-	int i;
-	for (i =0; i < length; i++) {
-		printf("%d\t", array[i]);
-	}
-	
-	printf("\n");
-}
diff --git a/experiments/gcc-5-gdb/include/array.h b/experiments/gcc-5-gdb/include/array.h
deleted file mode 100644
index 3f079f4..0000000
--- a/experiments/gcc-5-gdb/include/array.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _ARRAY_H
-#define _ARRAY_H
-
-void array_fill_with(int *array, int length, int fillWith);
-void array_print(int *array, int length);
-
-void array_add(int *arrayX, int *arrayY, int *arrayZ, int length);
-
-#endif
diff --git a/experiments/gcc-5-gdb/main.c b/experiments/gcc-5-gdb/main.c
deleted file mode 100644
index f6ff3da..0000000
--- a/experiments/gcc-5-gdb/main.c
+++ /dev/null
@@ -1,24 +0,0 @@
-#include <stdio.h>
-
-#include "include/array.h"
-
-#define VECTOR_LENGTH 16
-
-int main(void) {
-
-	int vector_a[VECTOR_LENGTH], vector_b[VECTOR_LENGTH], vector_c[VECTOR_LENGTH];
-
-	array_fill_with(vector_a, VECTOR_LENGTH, 10);
-	array_fill_with(vector_b, VECTOR_LENGTH, 55);
-
-	
-	array_add(vector_a, vector_b, vector_c, VECTOR_LENGTH);
-
-
-	array_print(vector_c, VECTOR_LENGTH);
-	
-	return 0;
-}
-
-
-