实现文件中批量用户创建—1

实现文件中批量用户创建

创建用户文件

[root@localhost ~]# cat user.txt 
user01
user02
user03
user04
user05

脚本案例

#!/bin/bash
#create user by file
#v1.0 itwangqiang 2020/12/28

pass=123456

if [ $# -eq 0 ];then
	echo "usage: `basename $0` file"
	exit
fi

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

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

执行

[root@localhost shell]# ./createuser.sh user.txt 
user user01 is exist
user user02 is exist
user user03 is exist
user user04 is exist
user user05 is exist
[root@localhost shell]# ls /home/
user01  user02  user03  user04  user05