#!/bin/bash

#批量添加指定数量的用户

read -p "please input user name: " -t 30 name

read -p "please input the number of users: " -t 30 num

read -p "please input the password of users: " -t 30 pass

if [ ! -z "$name" -a ! -z "$num" -a ! -z "$pass" ]

        then

        y=$(echo $num | sed 's/[ 0-9 ]//g')

        if [ -z "$y" ]

        then

        for (( i=i;i<=$num;i=i+1 ))

         do

                /usr/sbin/useradd $name$! &>/dev/null

                echo $pass | /usr/bin/passwd --stdin $name$i &>/dev/null

             done

        fi

fi