11.5.3-Shell编程-流程控制-for循环

第十一讲Shell编程主讲人：沈超（)交流论坛：…do程序done#!/bin/bash#打印时间#Author:shenchao（E-mail:[e-mail]）fortimeinmorningnoonafternooneveningdoechoThistimeis$time!done#!/bin/bash#批量解压缩脚本#Author:shenchao（E-mail:[e-mail]）cd/lampls*.tar.gzls.logforiin$(catls.log)dotar-zxf$i&/dev/nulldonerm-rf/lamp/ls.log语法二for((初始值;循环控制条件;变量变化))do程序done#!/bin/bash#从1加到100#Author:shenchao（E-mail:[e-mail]）s=0for((i=1;i=100;i=i+1))dos=$(($s+$i))doneechoThesumof1+2+...+100is:$s#!/bin/bash#批量添加指定数量的用户#Author:shenchao（E-mail:[e-mail]）read-pPleaseinputusername:-t30nameread-pPleaseinputthenumberofusers:-t30numread-pPleaseinputthepasswordofusers:-t30passif[!-z$name-a!-z$num-a!-z$pass]theny=$(echo$num|sed's/[0-9]//g')if[-z$y]thenfor((i=1;i=$num;i=i+1))do/usr/sbin/useradd$name$i&/dev/nullecho$pass|/usr/bin/passwd--stdin$name$i&/dev/nulldonefifi