#!/bin/bash

####我们在这以8位为例x=abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789for i in {1..8}doNUM=$[RANDOM%62]PASS=${x:NUM:1}PASS1=${PASS1}$PASSdone

read -p "请输入您创建的用户名：" user

[ -z $user ] && exit[ ! -z echo $user | awk '{print $2}' ] && exit[ ! -z echo $user | sed 's#[0-9]##g' | sed 's#[a-Z]##g' ] && exituseradd $user

echo "$PASS1" | passwd --stdin $user > /dev/null

echo -e "$PASS1\t$user" >> mail.txt ####### 管理员备份read -p "请输入您的邮箱帐号：" mailecho "用户：$user 密码：$PASS1" | mail -s "新建用户$user的密码" -r admin $mail#######新手第一次写 多多指教