find_cmd(cmd)
This function tries to determine the full path to a command line program using :None:None:`which` on Unix/Linux/OS X and :None:None:`win32api` on Windows. Most of the time it will use the version that is first on the users :None:None:`PATH`.
Warning, don't use this to find IPython command line programs as there is a risk you will find the wrong one. Instead find those using the following code and looking for the application itself:
import sys argv = [sys.executable, '-m', 'IPython']
The command line program to look for.
Find absolute path to executable cmd in a cross platform manner.
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