1 [root@mysql tmp]# cat 15-05-create_user_passwd.sh
2 #!/bin/sh
3 for n in $(seq -w 10)
4 do
5   useradd oldboy-$n
6   #密码就是最后一次
7   echo "$n"|passwd --stdin oldboy-$n
8 done

 1 [root@mysql tmp]# sh 15-05-create_user_passwd.sh
 2 Changing password for user oldboy-01.
 3 passwd: all authentication tokens updated successfully.
 4 Changing password for user oldboy-02.
 5 passwd: all authentication tokens updated successfully.
 6 Changing password for user oldboy-03.
 7 passwd: all authentication tokens updated successfully.
 8 Changing password for user oldboy-04.
 9 passwd: all authentication tokens updated successfully.
10 Changing password for user oldboy-05.
11 passwd: all authentication tokens updated successfully.
12 Changing password for user oldboy-06.
13 passwd: all authentication tokens updated successfully.
14 Changing password for user oldboy-07.
15 passwd: all authentication tokens updated successfully.
16 Changing password for user oldboy-08.
17 passwd: all authentication tokens updated successfully.
18 Changing password for user oldboy-09.
19 passwd: all authentication tokens updated successfully.
20 Changing password for user oldboy-10.
21 passwd: all authentication tokens updated successfully.
22  
23 [root@mysql tmp]# su - oldboy-01
24  
25 [oldboy-01@mysql ~]$ su - oldboy-10
26 口令：10

 1 [root@kuaiwei tmp]# cat adduser.sh
 2 #!/bin/sh
 3 . /etc/init.d/functions
 4 >/tmp/user.txt
 5  
 6 for n in $(seq -w 10)
 7 do
 8     passwd=`echo $(date +%t%N)$RANDOM|md5sum|cut -c 2-9`
 9     useradd oldboy-$n >&/dev/null && user_status=$?
10     echo "$passwd"|passwd --stdin oldboy-$n >&/dev/null && pass_status=$?
11  
12     if [ $user_status -eq 0 -a $pass_status -eq 0 ];then      
13           action "adduser oldboy-$n" /bin/true
14           echo -e "user:\toldboy-$n pass:\t$passwd" >>/tmp/user.txt   
15      else
16           action "adduser oldboy-$n" /bin/false
17           echo -e "user:\toldboy-$n pass:\t$passwd" >>/tmp/fail_user.txt
18      fi
19    
20  done

 1 [root@kuaiwei tmp]# sh adduser.sh
 2 adduser oldboy-01 [  OK  ]
 3 adduser oldboy-02 [  OK  ]
 4 adduser oldboy-03 [  OK  ]
 5 adduser oldboy-04 [  OK  ]
 6 adduser oldboy-05 [  OK  ]
 7 adduser oldboy-06 [  OK  ]
 8 adduser oldboy-07 [  OK  ]
 9 adduser oldboy-08 [  OK  ]
10 adduser oldboy-09 [  OK  ]
11 adduser oldboy-10 [  OK  ]
12  
13 检查创建用户日志，发现创建成功
14 [root@kuaiwei tmp]# cat user.txt
15 user:   oldboy-01 pass: dd0b275b
16 user:   oldboy-02 pass: 968a2c8f
17 user:   oldboy-03 pass: 02b270cb
18 user:   oldboy-04 pass: 905deeee
19 user:   oldboy-05 pass: 138e6cf1
20 user:   oldboy-06 pass: 4be5f9a4
21 user:   oldboy-07 pass: e0bb693e
22 user:   oldboy-08 pass: 97fa2caa
23 user:   oldboy-09 pass: a08bff7d
24 user:   oldboy-10 pass: e4f4d39f
25  
26 检查创建错误日志，发现为空
27 [root@kuaiwei tmp]# cat fail_user.txt
28  
29 重复执行，要先删除原来用户，执行下面命令，可以批量删除
30 [root@kuaiwei tmp]# for n in $(seq -w 10);do userdel -r oldboy-$n;done
31  
32 重复执行一次，又会生成不一样的密码。
33 [root@kuaiwei tmp]# sh test.sh
34 adduser oldboy-01 [  OK  ]
35 adduser oldboy-02 [  OK  ]
36 adduser oldboy-03 [  OK  ]
37 adduser oldboy-04 [  OK  ]
38 adduser oldboy-05 [  OK  ]
39 adduser oldboy-06 [  OK  ]
40 adduser oldboy-07 [  OK  ]
41 adduser oldboy-08 [  OK  ]
42 adduser oldboy-09 [  OK  ]
43 adduser oldboy-10 [  OK  ]
44  
45 检查结果，发现密码变了。
46 [root@kuaiwei tmp]# cat user.txt
47 user:   oldboy-01 pass: 7152783a
48 user:   oldboy-02 pass: 5f714e8a
49 user:   oldboy-03 pass: 68f85e07
50 user:   oldboy-04 pass: d21fa12d
51 user:   oldboy-05 pass: 35cd16ed
52 user:   oldboy-06 pass: 8760591b
53 user:   oldboy-07 pass: 497bff6b
54 user:   oldboy-08 pass: d8266b5d
55 user:   oldboy-09 pass: 27404ce2
56 user:   oldboy-10 pass: cc35251a