一、安装
1） 从内核和目录里面查看是否支持inotify
[[email protected] ~]# uname -r
2.6.32-573.el6.x86_64
[[email protected] ~]# ls -l /proc/sys/fs/inotify/ -→主要查看下面有没有三个目录
总用量 0
-rw-r--r-- 1 root root 0 1月 21 13:03 max_queued_events
-rw-r--r-- 1 root root 0 1月 21 13:03 max_user_instances
-rw-r--r-- 1 root root 0 1月 21 13:03 max_user_watches
2）检查是否有安装inotify 如果没有就安装
rpm -qa inotify-tools
没有就先安装epol源
yum.repos.d]# wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-6.repo
之后安装
[[email protected] ~]# yum install inotify-tools -y
二、参数讲解、
[[email protected] ~]# which inotifywait
/usr/bin/inotifywait
[[email protected] inotify-tools]# bin/inotifywait —help
r ：递归查询目录
q：打印很少的信息，仅仅打印监控事件的信息 安静状态
m：始终保持事件监听状态
excluder#排除文件或者目录的时候不区分大小写
timefmt：指定时间输出的格式
d ：后台运行
-e： 事件 里面有很多方法
下面是事件参数
Events:
access file or directory contents were read 访问
modify file or directory contents were written 修改
attrib file or directory attributes changed 属性发生变化
close_write file or directory closed, after being opened in 写入之后关闭
writeable mode
close_nowrite file or directory closed, after being opened in
read-only mode
close file or directory closed, regardless of read/write mode
open file or directory opened
moved_to file or directory moved to watched directory 移动到哪里
moved_from file or directory moved from watched directory
move file or directory moved to or from watched directory
create file or directory created within watched directory
delete file or directory deleted within watched directory
delete_self file or directory was deleted
unmount file system containing file or directory unmounted卸载
之后就可以和nfs共享服务器之间的实时备份