shell习题-批量创建用户并设置密码

Myth丶恋晨 2022-05-22 06:22 228阅读 0赞

**1.要求：**

<table> 
 <tbody> 
  <tr> 
   <td><span style="font-family:SimSun;font-size:18px;">添加user_00 – user_09 10个用户，并且给他们设置一个随机密码，<br>密码要求10位包含大小写字母以及数字，<br>注意需要把每个用户的密码记录到一个日志文件里。</span></td> 
  </tr> 
 </tbody> 
</table>

**2.脚本答案:**

<table> 
 <tbody> 
  <tr> 
   <td><p><span style="font-family:SimSun;font-size:18px;">[root@liang ~]# cat /scritp/2018-06-14/usercreate,sh&nbsp;</span></p><span style="font-family:SimSun;font-size:18px;">#!/bin/bash<br>for i in `seq -w 00 09`<br>do<br>&nbsp; &nbsp; &nbsp; &nbsp; password=`/usr/bin/echo $RANDOM |md5sum |cut -c 1-10`&nbsp;<br>&nbsp; &nbsp; &nbsp; &nbsp; echo "$password" &gt;&gt;/test/password.log<br>&nbsp; &nbsp; &nbsp; &nbsp; useradd user_${i}<br>&nbsp; &nbsp; &nbsp; &nbsp; if [ $? -eq 0 ];then<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; echo "$password"|passwd --stdin user_${i}<br>&nbsp; &nbsp; &nbsp; &nbsp; fi<br>done<br></span><p><span style="font-family:SimSun;font-size:18px;"><br></span></p></td> 
  </tr> 
 </tbody> 
</table>

**3.执行脚本：**

<table> 
 <tbody> 
  <tr> 
   <td><span style="font-family:SimSun;font-size:18px;">[root@liang 2018-06-14]# bash usercreate.sh&nbsp;<br>Changing password for user user_00.<br>passwd: all authentication tokens updated successfully.<br>Changing password for user user_01.<br>passwd: all authentication tokens updated successfully.<br>Changing password for user user_02.<br>passwd: all authentication tokens updated successfully.<br>Changing password for user user_03.<br>passwd: all authentication tokens updated successfully.<br>Changing password for user user_04.<br>passwd: all authentication tokens updated successfully.<br>Changing password for user user_05.<br>passwd: all authentication tokens updated successfully.<br>Changing password for user user_06.<br>passwd: all authentication tokens updated successfully.<br>Changing password for user user_07.<br>passwd: all authentication tokens updated successfully.<br>Changing password for user user_08.<br>passwd: all authentication tokens updated successfully.<br>Changing password for user user_09.<br>passwd: all authentication tokens updated successfully.</span></td> 
  </tr> 
 </tbody> 
</table>

**4.密码日志**

<table> 
 <tbody> 
  <tr> 
   <td><span style="font-family:SimSun;font-size:18px;">[root@liang 2018-06-14]# cat -n /test/password.log&nbsp;<br>&nbsp; &nbsp; &nbsp;1 &nbsp;8f173d44c5<br>&nbsp; &nbsp; &nbsp;2 &nbsp;3191176109<br>&nbsp; &nbsp; &nbsp;3 &nbsp;eb69246aac<br>&nbsp; &nbsp; &nbsp;4 &nbsp;8e779f3fcd<br>&nbsp; &nbsp; &nbsp;5 &nbsp;64ce0eea97<br>&nbsp; &nbsp; &nbsp;6 &nbsp;37dab49727<br>&nbsp; &nbsp; &nbsp;7 &nbsp;0e0b3ba522<br>&nbsp; &nbsp; &nbsp;8 &nbsp;8845012401<br>&nbsp; &nbsp; &nbsp;9 &nbsp;4f80f29512<br>&nbsp; &nbsp; 10 &nbsp;4f244042b3<br></span></td> 
  </tr> 
 </tbody> 
</table>

**5.删除用户：**

<table> 
 <tbody> 
  <tr> 
   <td><span style="font-family:SimSun;font-size:18px;">[root@liang 2018-06-14]# tail -10 /etc/passwd|awk -F ":" '{print "userdel -r "$1}'|bash</span></td> 
  </tr> 
 </tbody> 
</table>