From: Daniel Berger <djberg96@...>
Date: 2010-10-20T05:08:58+09:00
Subject: Re: Separator in $PATH


On Oct 19, 2:02 pm, Stefano Mioli <stefano.mi...@gmail.com> wrote:
> Hello everyone,
>         Unix-like operating systems use a colon to separate each directory in
> the PATH, while Windows uses a semicolon.
>
> The question is: is there some class in the Ruby library that knows
> about this difference?

File::PATH_SEPARATOR

> I'm asking this question because I need to figure out if a given
> executable is in the path and, if it does, retrieve its full path.

require 'ptools'

File.which('ls') # => '/bin/ls'

Works on Windows, too, with or without an extension:

File.which('notepad')     # Works
File.which('notepad.exe') # Also works

Regards,

Dan