With the help of user ikegami over at stackoverflow. The following solutions works.
[-
use warnings;
use strict;
use IPC::Open3;
use POSIX;
$http_headers_out{'Content-Type'} = "text/plain";
my $cmd = 'ls';
open(my $fh, '>', '/dev/null') or die $!;
dup2(fileno($fh), 1) or die $! if fileno($fh) != 1;
local *STDOUT;
open(STDOUT, '>&=', 1) or die $!;
my $pid = open3(*HIS_IN, *HIS_OUT, *HIS_ERR, $cmd);
close(HIS_IN); # give end of file to kid, or feed him
my @outlines = <HIS_OUT>; # read till EOF
my @errlines = <HIS_ERR>; # XXX: block potential if mas
+sive
print OUT "STDOUT: ", @outlines, "\n";
print OUT "STDERR: ", @errlines, "\n";
waitpid( $pid, 0 );
my $child_exit_status = $? >> 8;
print OUT "child_exit_status: $child_exit_status\n";
-]
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
|
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
|
|