求一shell脚本 当我start时重命名/etc/ssh/sshd_config这个文件并且拷贝/usr/local/sshd_config这个文件到

#===================================#!/bin/sh# chkconfig: 123456 85 15# description: copy sshd configstart(){ mv /etc/ssh/sshd_config /etc/ssh/sshd_config.bak cp /usr/local/sshd_config /etc/ssh}stop(){ #不知所云,自己看着办}case "$1" instart)start;;stop)stop;;*)echo "$0 {start|stop}";;esac#=======================================