#!/usr/bin/perl

use warnings;
use strict;

use IPC::Open3;

# Basic setup stuff
open(SAVE_STDOUT,">&",STDOUT) or die "save stdout failed";
open(DEVNULL,"< /dev/null") or die "open /dev/null failed";

# Now set STDOUT to a filehandle on a new descriptor
open(FH1,"> /dev/null") or die "open /dev/null failed";
*STDOUT = *FH1;

# Run the command
open3(*DEVNULL, *PIPE, undef, "/bin/sh","-c",<<EOF) or die "open3 failed";
printf "out 1\\nout 2\\nout 3\\n"
printf "err 1\\nerr 2\\nerr 3\\n" >&2
EOF
;

# And copy the output
open(STDOUT,">&",*SAVE_STDOUT) or die "restore stout failed";
while (<PIPE>) {
  print "PIPE: ",$_;
}
close(PIPE) or die "close pipe failed";

exit(0);