4，使用Inotify结合rsync来进行随时随地自动发布web工程
编写一个inotify使用案例脚本inotify_web.sh：
4.1 inotify_web脚本
[root@localhost inotify-tools-3.14]# vim /usr/local/inotify-tools-3.14/inotify_web.sh
#!/bin/bash
src=/usr/local/nginx/web
des=web
#ip1=192.168.0.50，ip2是另外一台服务器ip地址
host="192.168.0.50 192.168.0.53"
# 使用inotifywait随时监控$src目录的一切变更，如果有，就自动调用后面的do…done里面的rsync代码块，将一切变更同步到两台web服务器上相同的目录里面。
/usr/local/inotify-tools-3.14/bin/inotifywait -mrq --timefmt '%d/%m/%y/%H:%M' --format '%T%w%f' -e close_write,move,delete,create $src | while read files
do
for hostip in $host
do
echo "`date '+%F %T'` start to resync $src to $hostip"
/usr/bin/rsync -auzv --progress --delete $src nginx@$hostip::$des --password-file=/etc/rsync.pas
echo "$src has been resynced to $hostip `date '+%F %T'`"
done
echo "${files} was rsynced" >>/tmp/rsync.log 2>&1
done
4.2，设置后台启动任务
[root@localhost inotify-tools-3.14]#
# 启动
nohup sh /usr/local/inotify-tools-3.14/inotify_web.sh >/tmp/inotify_rsync.log 2>&1 &
# 可以/tmp/inotify_rsync.log随时查看执行的日志信息
4.3，启动后，查看后台运行的进程：
[root@localhost inotify-tools-3.14]# ps -eaf|grep ino
root 17842 17594 0 20:15 pts/1 00:00:00 sh /usr/local/inotify-tools-3.14/inotify_web.sh
root 17843 17842 0 20:15 pts/1 00:00:00 /usr/local/inotify-tools-3.14/bin/inotifywait -mrq --timefmt %d/%m/%y/%H:%M --format %T%w%f -e close_write,move,delete,create /usr/local/nginx/web
root 17844 17842 0 20:15 pts/1 00:00:00 sh /usr/local/inotify-tools-3.14/inotify_web.sh
root 17872 17594 0 20:16 pts/1 00:00:00 tail -f /tmp/inotify_rsync.log
nginx 17882 17848 0 20:18 pts/0 00:00:00 grep ino
4.4，测试，check结果：
清空192.168.0.50和192.168.0.53上面的/usr/local/nginx/web下面所有文件，然后在inotify监听服务器上的/usr/local/nginx/web创建wb.txt。
按照原理，一旦在inotify创建了文件，那么就会把/usr/local/nginx/web下面的所有文件同步到192.168.0.50和192.168.0.53的相应/usr/local/nginx/web目录下面。
(1)，去查看inotify任务日志信息
[root@localhost web]# tail -f /tmp/inotify_rsync.log
nohup: 忽略输入
2014-06-28 20:16:20 start to resync /usr/local/nginx/web to 192.168.0.50
sending incremental file list
web/
web/dd.txt
0 100% 0.00kB/s 0:00:00 (xfer#1, to-check=4/6)
web/i3.txt/
web/t.txt/
sent 193 bytes received 40 bytes 466.00 bytes/sec
total size is 6 speedup is 0.03
/usr/local/nginx/web has been resynced to 192.168.0.50 2014-06-28 20:16:20
2014-06-28 20:16:20 start to resync /usr/local/nginx/web to 192.168.0.53
sending incremental file list
web/
web/dd.txt
0 100% 0.00kB/s 0:00:00 (xfer#1, to-check=4/6)
web/wb.txt
6 100% 0.00kB/s 0:00:00 (xfer#2, to-check=3/6)
web/i3.txt/
web/t.txt/
web/test/
sent 242 bytes received 62 bytes 608.00 bytes/sec
total size is 6 speedup is 0.02
/usr/local/nginx/web has been resynced to 192.168.0.53 2014-06-28 20:16:20
(2)，去另外一台192.168.0.53，查看下，文件已经同步过去。
[root@localhost web]# pwd
/usr/local/nginx/web
[root@localhost web]# ll
总用量 16
-rw-r--r--. 1 nginx nginx 0 6月 28 20:04 dd.txt
drwxrwxr-x. 2 nginx nginx 4096 6月 28 20:16 i3.txt
drwxr-xr-x. 2 nginx nginx 4096 6月 28 19:53 test
drwxr-xr-x. 2 nginx nginx 4096 6月 28 20:10 t.txt
-rw-r--r--. 1 nginx nginx 6 6月 28 19:51 wb.txt
至此，简单的通过inotify和rsync实现web工程自动同步功能已经完成，还有一点小细节留待后续解决。