案例九：shell脚本自动创建多个新用户，并设置密码

#!/bin/bash
for name in $( seq 1 100 )
    do
        useradd "user$name"
            if [ $? -eq 0 ];then
                echo -e "\n创建 "user$name" 成功!"
            fi
    done

i=1
for (1..100)
do 
    groupadd users
    adduser user$i -g users
    echo user | passwd "user$1" --stdin
    i=$( $i + 1)
done

#!/bin/bash
for i in {1..100}
do
        useradd student$i
        echo "123456" | passwd --stdin student$i
done