rsync启停脚本开发

检查是否有rsync

[root@localhost ~]# rpm -qa rsync
rsync-3.1.2-12.el7_9.x86_64

启动服务

/usr/bin/rsync --daemon

检查服务是否启动

[root@localhost ~]# ps -ef |grep rsync |grep -v grep
root      12182      1  0 14:37 ?        00:00:00 /usr/bin/rsync --daemon
[root@localhost ~]# netstat -tunlp |grep 873
tcp        0      0 0.0.0.0:873             0.0.0.0:*               LISTEN      12182/rsync         
tcp6       0      0 :::873                  :::*                    LISTEN      12182/rsync  

停止rsync服务
[root@localhost ~]# pkill rsync
开发启停脚本
/etc/init.d/rsync

#!/bin/bash

# author:sprr
# -ge if条件的大于等于 -ne bu等于 -gt 大于，$# 返回传递给脚本参数个数，$0 取得脚本文件名

# 限制用户必须传入一个参数
if [ "$#" -ne 1 ]
   then
       echo "Usage:$0 {start|stop|restart}"
       exit 1
fi

#检测rsync是否启动
#function check(){
#rsync_status=`netstat -tunlp|grep rsync|wc -l`
#return rsync_status
#}

if [ "$1"  = "start"  ]
   then

      rsync_status=`netstat -tunlp|grep rsync|wc -l`
      if [ "$rsync_status" -gt 0 ]
	 then
             echo "rsync already started!"
		exit 1
          else
             /usr/bin/rsync --daemon
              exit 0
      fi
elif [ "$1" = "stop" ]
    then
       killall rsync &>/dev/null
       sleep 2
        rsync_status=`netstat -tunlp|grep rsync|wc -l`

       if [ "$rsync_status" -eq 0 ]
          then 
              echo "rsync is stopped!"
              exit 0
       fi
elif [ "$1" = "restart" ]
    then
      killall rsync &>/dev/null
      /usr/bin/rsync --daemon
      sleep 2
       rsync_status=`netstat -tunlp|grep rsync|wc -l`

      if [ "$rsync_status" -gt 0 ]
         then
           echo "rsync is restarted!"
      fi
else 
    echo "Usage:$0 {start|stop|restart}"
fi