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Re: eval a command

by tmharish (Friar)
on Feb 21, 2013 at 14:13 UTC ( #1019952=note: print w/replies, xml ) Need Help??


in reply to eval a command

The following code exists and the fork prints "Hello World" after the required 5 sec.

use strict ; use warnings ; my $cmd = 'sleep 5; print "Hello World\n";' ; my $pid = fork(); if (defined $pid && $pid == 0) { # child eval $cmd; } exit 0;

OS, Perl version and details on the command you are trying to execute might help

Replies are listed 'Best First'.
Re^2: eval a command
by Xantara (Initiate) on Feb 21, 2013 at 14:56 UTC

    All the commands that I run are subroutines of perl modules only. Execution of the $cmd, calls userdefined perl module API. In my case $mci->Do(); OS - Windows XP Perl Version 5.6

      If you can update from 5.6 its probably a good idea.

      On the other hand did you try to directly call that function and see if that works. Also why not just call these functions instead of using eval?

      5.6 is over ten years old, seriously consider upgrading if at all posible.

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[ambrus]: ad code examples.
[ambrus]: I'm not trying to recommend PHP, but I think it has way too bad a name because of its past.
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[Discipulus]: ah ok, sounds reasonable; with no fear: Perl all life long
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