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Modules look for library.pm in the modules directory
Modules should have a call to checkOS (in library.pm) which verifies the
module is for the current OS.
In Unix, the script will be run only if
It is owned by root
It's execution bit is set for root and all others are set to 0, ie 0700
On all platforms, the file name must begin with an alpha-numeric,
and contains only alpha-numerics and underscores. Case does not matter.
Each module should test to determine if it can be executed. For example,
a module using ipmitool should test for its existence and simply
return nothing if it does not. In other words, no STDERR.
Modules should return a code
0 - Everything is fine, and results returned on STDOUT
1 - Incorrect operating system
2 - One or more programs needed are not found
greater than 2 is an arbitrary value which is currently ignored
See template.basic for a sample of how to write a module.