Re: 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;
[download]

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

Comment on Re: eval a command Download Code

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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	[reply]
Re^3: eval a command by tmharish (Friar) on Feb 22, 2013 at 06:40 UTC
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?	[reply]
Re^3: eval a command by marto (Cardinal) on Feb 22, 2013 at 09:54 UTC
5.6 is over ten years old, seriously consider upgrading if at all posible.	[reply]