Passing parameters into a perl program.

basicdez has asked for the wisdom of the Perl Monks concerning the following question:

Replies are listed 'Best First'.
Re: Passing parameters into a perl program. by dws (Chancellor) on Mar 12, 2002 at 21:15 UTC
is there a way to not only call another perl program but to pass it parameters as well? TIMTOWTDI $output = `foo.pl $arg1 $arg2`; system("foo.pl $arg1 $arg2"); system("foo.pl", $arg1, $arg2); [download] The difference in behavior between the last to examples is subtle, but worthy of study. It is well-described in perlfunc.	[reply] [d/l]
Re: Re: Passing parameters into a perl program. by basicdez (Pilgrim) on Mar 12, 2002 at 22:07 UTC
Thanks	[reply]
Re: Passing parameters into a perl program. by derby (Abbot) on Mar 12, 2002 at 21:16 UTC
basicdez, sure. Pass 'em on the command line then read them out of @ARGV skip backticks and system, use fork /exec, and pipe and send them from the parent to the child via STDIN slightly more complicated: IPC -derby	[reply]
Re: Passing parameters into a perl program. by webadept (Pilgrim) on Mar 12, 2002 at 21:58 UTC
Answer to your problem is above. If you are sending multiple parameters to an outside perl program, you may consider looking into building modules / classes or simply making an included function library. This way its easy to send and receive information and much more friendly on those that will see your code in the future. Of course there are plenty of valid reasons to do exactly what you are asking, so this is just a hint without cause :-) Glenn H.	[reply]