Linux中用脚本实现批量添加和删除普通用户

#!/bin/bash
#批量添加用户

read -t 30 -p "Please input user's name: " name

read -t 30 -p "Please input user's num: " num

read -t 30 -p "Please input user's passwd: " -s pass
#从键盘接收用户名、数量、用户密码

for (( i=1;i<=$num;i=i+1 ))
do
/usr/sbin/useradd $name$i &> /dev/null
echo $pass | /usr/bin/passwd --stdin $name$i &> /dev/null
#为每位用户赋初始密码
done

#!/bin/bash
#批量删除用户

for i in $( cat /etc/passwd | grep "/bin/bash" | grep -v root | cut -d ":" -f 1 )
do
userdel -r $i
done