check_md5.php

A Nagios plugin written in PHP to check the MD5 sum of a single file. 
In case the files MD5 change the plugin issues a critical state. This behavior 
can be changed by using a --warning argument, so that only a warning state is 
issued. 
This is a re-write of my previous check_md5 that was written in Bash. The Bash
version is more tested and should work better. I wrote this this version mainly
as a way to practice some PHP.

Options: 
-h 
Print detailed help screen 
-V 
Print version information 

--warning 
Issue a warning state instead of a critical state in case of a MD5 failure 
Default is critical 

--file /path/to/file 
Set which file to monitor 

--md5 md5checksum 
Set the MD5 checksum for the file set by --file