I have some open source software packages that were written in Ruby by a third
party that make use of external programs. For the purposes of security
auditing, and for making appropriate fixes, I need to locate all instances
within the code, where an external program is being called.

What keywords or functions would I need to locate?

I am thinking of using grep to simply search for the function names. Would
that be sufficient, or is it possible that function names are split across
several lines, making it possible for some instances to be missed during the
audit?

Mark.

-- 
Mark Hobley
Linux User: #370818  http://markhobley.yi.org/