Re: source the license and run the program in perl

This is a FAQ (search for "I {changed directory, modified my environment} in a perl script" in that page). You're running something which executes commands which change the shell's environment. In your case, you run the shell, which then immediately exits. Your Perl process' environment is untouched.

Update: That being said, the presumption that you should run everything from Perl and ignore the shell's kind of daffy. Right tool for the right job. You don't use a chainsaw to do dental work, you don't try and paint your walls with a hedgehog.

Comment on Re: source the license and run the program in perl

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Re^2: source the license and run the program in perl by Tanktalus (Canon) on May 17, 2007 at 18:07 UTC
Ok, now you have my curiosity piqued. I can imagine what job a chainsaw is good at, and what tools are needed for dental work or painting your walls. What I can't figure out is what job, precisely, a hedgehog is the right tool for.	[reply]
Re^3: source the license and run the program in perl by Fletch (Bishop) on May 17, 2007 at 19:38 UTC
Awww, come on guys, it's so simple. Maybe you need a refresher course. Hey! It's all ~~ball bearings~~hedgehogs nowadays. Now you prepare that Fetzer valve with some 3-in-1 oil and some gauze pads. And I'm gonna need 'bout ten quarts of anti-freeze, preferably Prestone. No, no make that Quaker State. cough Ehrm . . . ah, yes; an explanation. Directly manipulating your parent process' environment is one of those "so bad it's not even wrong" things under the POSIX paradigm; similarly attempting to paint something with a small, spine-covered mammal . . . Update: Yeah, weak. I've got nothing . . . Oh look, defenseless babies!	[reply]