利用shell脚本-实现批量创建用户方案二

最新推荐文章于 2025-06-12 21:00:41 发布

chenyantao566

最新推荐文章于 2025-06-12 21:00:41 发布

阅读量221

点赞数

分类专栏：笔记文章标签： shell

本文链接：https://blog.youkuaiyun.com/chenyantao566/article/details/109786577

版权

笔记专栏收录该内容

6 篇文章

订阅专栏

该博客介绍了通过Shell脚本实现批量创建用户的功能。需求是读入包含用户名的文件，批量创建文件内所有用户。给出了测试结果，展示了不同输入情况下脚本的执行情况，如文件不存在、用户已存在等情况，最终成功创建用户。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

需求描述:

通过读入一个包含用户名的文件批量创建文件内部的所有用户.

实现代码:

#!/bin/bash
#v1.0 by ytchen5
#2020年11月17日
pass=123456
if [ $# -eq 0 ];then
        echo "usage:`basename $0` file"
        exit 1
fi

if [ ! -f $1 ];then
        echo "usage: error file"
        exit 2
fi

for i in `cat $1`
do
        id $i &>/dev/null
        if [ $? -eq 0 ];then
                echo "user $i already exists."
        else
                useradd $i &>/dev/null
                echo "$pass" | passwd --stdin $i &>/dev/null
                if [ $? -eq 0 ];then
                        echo "$i is created."
                fi
        fi
done

测试结果:

[root@vm1 chenyantao]# cat user.txt
CHEN
ZHAO
LIU
eof
CHEN
ZHAO
LIU
eof
[root@vm1 chenyantao]# bash creat_user.sh
usage:creat_user.sh file
[root@vm1 chenyantao]# bash creat_user.sh dffdg
usage: error file
[root@vm1 chenyantao]# bash creat_user.sh user.txt
user CHEN already exists.
user ZHAO already exists.
user LIU already exists.
user eof already exists.
user CHEN already exists.
user ZHAO already exists.
user LIU already exists.
user eof already exists.
[root@vm1 chenyantao]# for i in cat user.txt;do userdel -r $i &>/dev/null; done
[root@vm1 chenyantao]# bash creat_user.sh user.txt
CHEN is created.
ZHAO is created.
LIU is created.
eof is created.
user CHEN already exists.
user ZHAO already exists.
user LIU already exists.
user eof already exists.
[root@vm1 chenyantao]#