Centos或Linux编写一键式Shell脚本删除用户、组指导手册

柔情只为你懂 2024-03-17 16:03 45阅读 0赞

![在这里插入图片描述][201cb7e59bb94276b20be0c55371360b.jpeg_pic_center]

#### 文章目录 ####

*  一、目的
 *  二、操作步骤

## 一、目的 ##

本指导手册为了更加方便使用Centos或者Linux，并在里面删除用户、用户组。

`注意点1`：userdel命令删除该用户时，并不能删除该用户的所有信息，只是删除了/etc/passwd、/etc/shadow、/etc/group/、/etc/gshadow四个文件里的该账户和组的信息。默认情况下创建一个用户账号，会创建一个家目录（在/home/目录以用户名命名）和一个用户邮箱（在/var/spool/mail目录以用户名命名）  
因此彻底删除用户，还需额外执行命令：

rm -rf /home/用户名/
    rm -rf /var/spool/mail/用户名

`注意点2`：删除组参数介绍

[root@usertest ~]# groupdel -h
    Usage: groupdel [options] GROUP
    
    Options:
      -h, --help                    display this help message and exit
      -R, --root CHROOT_DIR         directory to chroot into
      -P, --prefix PREFIX_DIR       prefix directory where are located the /etc/* files
      -f, --force                   delete group even if it is the primary group of a user

## 二、操作步骤 ##

> configure\_delete\_oss.sh

#!/bin/bash
    
    # 设置用户名和密码
    username1="oss_cm"
    username2="oss_pm"
    username3="oss_hw"
    groupname1="oss_cm_group"
    groupname2="oss_pm_group"
    groupname3="oss_hw_group"
    echo "Set userName and groupName completed."
    
    # 检查用户是否存在
    if id "$username1" >/dev/null 2>&1; then
        # 删除用户
        userdel -r "$username1"
        rm -rf /home/"$username1"/
        rm -rf /var/spool/mail/"$username1"
        echo "user $username1 deleted successfully"
    else
        echo "user $username1 inexistence"
    fi
    
    if id "$username2" >/dev/null 2>&1; then
        # 删除用户
        userdel -r "$username2"
        rm -rf /home/"$username2"/
        rm -rf /var/spool/mail/"$username2"
        echo "user $username2 deleted successfully"
    else
        echo "user $username2 inexistence"
    fi
    
    if id "$username3" >/dev/null 2>&1; then
        # 删除用户
        userdel -r "$username3"
        rm -rf /home/"$username3"/
        rm -rf /var/spool/mail/"$username3"
        echo "user $username3 deleted successfully"
    else
        echo "user $username3 inexistence"
    fi
    
    # 检查组是否存在
    if grep -q "^$groupname1:" /etc/group; then
        # 删除组
        groupdel "$groupname1"
        echo "group $groupname1 deleted successfully"
    else
        echo "group $groupname1 inexistence"
    fi
    
    if grep -q "^$groupname2:" /etc/group; then
        # 删除组
        groupdel "$groupname2"
        echo "group $groupname2 deleted successfully"
    else
        echo "group $groupname2 inexistence"
    fi
    
    if grep -q "^$groupname3:" /etc/group; then
        # 删除组
        groupdel "$groupname3"
        echo "group $groupname3 deleted successfully"
    else
        echo "group $groupname3 inexistence"
    fi
    echo "OSS configuration completed."

[201cb7e59bb94276b20be0c55371360b.jpeg_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/15/f35c8d3a76d5406ebf2aba276f4edbcd.png