linux自学_shell脚本for详解

for 循环 通常把变量都轮询一遍去执行一些任务

如开机启动程序精简

for cheng in `chkconfig --list|grep 3:on |awk ‘{print $1}’`

do

 chkconfig $cheng off

done

for cheng in ssh crond

do

 chkconfig $cheng on

done