Hello, I made a simple subroutine to extract: 1/ return code, 2/ output, and 3/ error after executing a command. This works as a simple perl script, but my subroutine fails. Help please. Oh, I should explain what doesn't work. A) The command executes, but the exit code is always 0. B) Error is always empty. C) Output gets the error as well.

My sub-routine as below: 
package ABCUtilities;

#!/usr/bin/perl
use warnings;
use strict;
use IPC::Open3;

sub execute {
        my $cmd = shift;

        my $pid = open3(\*WRITER, \*READER, \*ERROR, $cmd);

        my ($err_msg, $out_msg) = ('', '');

        while( my $output = <READER> ) {
                $out_msg .= $output; # . " <br>";
        }

        while( my $errout = <ERROR> ) {
                $err_msg .= $errout; # . "<br>";
        }

        waitpid( $pid, 0 ) or die "$!\n";
        my $exit_code =  $? >> 8;

        return ($exit_code, $err_msg, $out_msg);
}

1;

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In reply to Open3 doesn't work in a sub-routine by sirohia

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