1 #!/bin/bash
 2 #
 3 #this program use to add account for your linux
 4 #referece: vbird‘s private dish.
 5 #
 6 #History: 2017/04/13
 7 
 8 
 9 #保存帐号密码文件
10 accountfile="user.passwd"
11 
12 read -p "输入年级：如（2015）："  username_grade
13 read -p "输入班级号：如（1122）：" username_class
14 read -p "输入编号位数：如（2）：" nu_nu
15 read -p "输入起始号码：如（1）：" nu_start
16 read -p "输入帐号数量：如（10）:" nu_amount
17 
18 if [ "$username_grade" == "" -o "username_class" == "" ]; then  
19     echo "请输入年级班级信息！";
20     exit 1
21 fi
22 
23 #判断数字是否合法
24 testing0=$(echo $nu_nu | grep ‘^0-9‘)
25 testing1=$(echo $nu_start | grep ‘^0-9‘)
26 testing2=$(echo $nu_amount | grep ‘^0-9‘)
27 
28 if [ "$testing0" != "" -o "$testing1" != "" -o "$testing2" != "" ]; then
29     echo "输入的数字不对!";
30     exit 1
31 fi 
32 
33 #如果文件存在重命名加上日期
34 [ -f "$accountfile" ] && mv $accountfile "$accountfile"$(date +%Y%m%d%s)
35 
36 nu_end=$(($nu_start+$nu_amount-1))
37 
38 for((i=$nu_start; i<=$nu_end; i++))
39 do 
40     #${i} 统计数字i的长度
41     nu_len=${#i}
42     if [ $nu_nu -lt $nu_len ]; then
43     echo "输入不合理，编号位数不足或帐号数量过多！"
44     echo "please check it out"
45     exit 1
46     fi
47     
48     #需要在编号前面补零的位数
49     nu_diff=$(($nu_nu - $nu_len))
50     
51     nu_nn=""
52     if [ "$nu_diff" != "0" ]; then
53     nu_nn=0000000000
54     nu_nn=${nu_nn:1:$nu_diff}
55     fi
56     
57     #将以上信息年级，班级，序号拼接起来组成一个帐号
58     account=${username_grade}${username_class}${nu_nn}${i}
59     password="$account"
60     
61     #帐号密码写入文件
62     echo 帐号:"$account":密码:"$password" | tee -a "$accountfile"
63 done
64 
65 #新建帐号密码
66 usernames=$(cat "$accountfile" | cut -d‘:‘ -f2)
67 
68 for u in $usernames
69 do
70     useradd $u
71     echo $u | passwd --stdin $u
72     #强制登录修改密码
73     chage -d 0 $u
74     
75 done
76 
77 echo "Ok! 新建$nu_amount个账户."

1 #!/bin/bash
2 # to del the user from file
3 
4 usernames=$(cat user.passwd | cut -d‘:‘ -f2)
5 for username in $usernames
6 do
7     echo "删除用户$username"
8     userdel -r $username
9 done