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要求:批量创建10个系统账号oldboy01-oldboy10，并设置生成密码(密码不同).
实现脚本:
| 1 2 3 4 5 6 7 | #!/bin/bash #Question3 for i in $( seq -w 10) do useradd -s /bin/bash oldboy$i echo "password$i" | md5sum | tee -a passwd .txt | passwd --stdin oldboy$i done |
脚本执行效果:
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | [root@localhost q4] # sh q4.sh Changing password for user oldboy01. passwd : all authentication tokens updated successfully. Changing password for user oldboy02. passwd : all authentication tokens updated successfully. Changing password for user oldboy03. passwd : all authentication tokens updated successfully. Changing password for user oldboy04. passwd : all authentication tokens updated successfully. Changing password for user oldboy05. passwd : all authentication tokens updated successfully. Changing password for user oldboy06. passwd : all authentication tokens updated successfully. Changing password for user oldboy07. passwd : all authentication tokens updated successfully. Changing password for user oldboy08. passwd : all authentication tokens updated successfully. Changing password for user oldboy09. passwd : all authentication tokens updated successfully. Changing password for user oldboy10. passwd : all authentication tokens updated successfully. 查看 passwd 文件: [root@localhost q4] # tail -n 10 /etc/passwd oldboy01:x:501:501:: /home/oldboy01 : /bin/bash oldboy02:x:502:502:: /home/oldboy02 : /bin/bash oldboy03:x:503:503:: /home/oldboy03 : /bin/bash oldboy04:x:504:504:: /home/oldboy04 : /bin/bash oldboy05:x:505:505:: /home/oldboy05 : /bin/bash oldboy06:x:506:506:: /home/oldboy06 : /bin/bash oldboy07:x:507:507:: /home/oldboy07 : /bin/bash oldboy08:x:508:508:: /home/oldboy08 : /bin/bash oldboy09:x:509:509:: /home/oldboy09 : /bin/bash oldboy10:x:510:510:: /home/oldboy10 : /bin/bash |
账号成功创建。然后看一下密码文件:
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | [root@localhost q4] # ls passwd .txt q4.sh [root@localhost q4] # cat passwd.txt #MD5机密后的密码 10b222970537b97919db36ec757370d2 - f1f16683f3e0208131b46d37a79c8921 - 32a3571fa12b39266a58d42234836839 - 10b222970537b97919db36ec757370d2 - f1f16683f3e0208131b46d37a79c8921 - 32a3571fa12b39266a58d42234836839 - 978a60e3ebbb2dd56aa5f821d7f42a2b - cdffb1b0971ab2a3befc18c43d3ca5be - 4679834a98e77dd2cec854b51de6d886 - ad8e8436435f93f6a7b295418889edff - f46c891cad3974fc64b7133911404c2a - ebde6449998d7c84ccb23725ecac782b - 6c60d92e5b9757ce16c8e238174a6cac - 5147eebead1aee9cbe761ec89b1101f1 - 16a383252c3a264b3d977592ce8cf8ee - 446174d0862f8f830ef4c54bdcf73d82 - 166335a86348834ffd4d79cd5a73867b - |
要求2:批量创建10个系统账号oldboy01-oldboy10，并随机设置密码(密码为8位字符).
基于上面脚本略作修改:
| 1 2 3 4 5 6 7 | #!/bin/bash #Question4 for i in $( seq -w 10) do useradd -s /bin/bash oldboy$i echo "password$i" | md5sum | cut -c-8 | tee -a passwd .txt | passwd --stdin oldboy$i done |
执行效果:
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | [root@localhost q4] # sh q4.sh Changing password for user oldboy01. passwd : all authentication tokens updated successfully. Changing password for user oldboy02. passwd : all authentication tokens updated successfully. Changing password for user oldboy03. passwd : all authentication tokens updated successfully. Changing password for user oldboy04. passwd : all authentication tokens updated successfully. Changing password for user oldboy05. passwd : all authentication tokens updated successfully. Changing password for user oldboy06. passwd : all authentication tokens updated successfully. Changing password for user oldboy07. passwd : all authentication tokens updated successfully. Changing password for user oldboy08. passwd : all authentication tokens updated successfully. Changing password for user oldboy09. passwd : all authentication tokens updated successfully. Changing password for user oldboy10. passwd : all authentication tokens updated successfully. #看一下密码文件 #tee命令中由于使用-a，所以是追加而不是覆盖 [root@localhost q4] # cat passwd.txt 10b222970537b97919db36ec757370d2 - f1f16683f3e0208131b46d37a79c8921 - 32a3571fa12b39266a58d42234836839 - 10b222970537b97919db36ec757370d2 - f1f16683f3e0208131b46d37a79c8921 - 32a3571fa12b39266a58d42234836839 - 978a60e3ebbb2dd56aa5f821d7f42a2b - cdffb1b0971ab2a3befc18c43d3ca5be - 4679834a98e77dd2cec854b51de6d886 - ad8e8436435f93f6a7b295418889edff - f46c891cad3974fc64b7133911404c2a - ebde6449998d7c84ccb23725ecac782b - 6c60d92e5b9757ce16c8e238174a6cac - 5147eebead1aee9cbe761ec89b1101f1 - 16a383252c3a264b3d977592ce8cf8ee - 446174d0862f8f830ef4c54bdcf73d82 - 166335a86348834ffd4d79cd5a73867b - cdffb1b0 4679834a ad8e8436 f46c891c ebde6449 6c60d92e 5147eebe 16a38325 446174d0 166335a8 |
上面少了随机的过程:
批量删除刚才创建的用户:
| 1 2 3 4 5 6 | #!/bin/bash #del_user.sh for i in ` seq -w 10` do userdel -r oldboy$i done |
随机生成密码的脚本:
| 1 2 3 4 5 6 7 | #!/bin/bash #Question4 for i in $( seq -w 10) do useradd -s /bin/bash oldboy$i echo "$RANDOM" | md5sum | cut -c-8 | tee passwd .txt | passwd --stdin oldboy$i done |
本文转自marbury 51CTO博客，原文链接：http://blog.51cto.com/magic3/1431581，如需转载请自行联系原作者