Re: Perl open pipe exiting early

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Re^2: Perl open pipe exiting early by albob (Sexton) on Apr 03, 2015 at 12:07 UTC
Yes, I missed that one. I should be doing that. Hopefully that will give me a pointer. Thanks	[reply]
Re^3: Perl open pipe exiting early by albob (Sexton) on Apr 03, 2015 at 13:03 UTC
No luck with this, ubless I messed up the way I added it: `my $run_pid = open(RUN, "sub_script.pl $options 2>&1 \|") or $sub_fai +led = 1; if (!$sub_failed) { $text .= "Entered if (!\$sub_failed) {\n"; while (<RUN>) { $text .= "Entered while (<RUN>)\n"; chomp; $_ =~ s/^\s*//; $text .= "$_\n"; } close(RUN); if ($? != 0) { $sub_failed = 1; $text = "Open error: $!\n";} } else { $text .= "Failed to open sub_script.pl\n";} print "$text";` [download] $! returned empty. I could well be using it incorrectly though.	[reply] [d/l]
Re^4: Perl open pipe exiting early by choroba (Cardinal) on Apr 03, 2015 at 13:44 UTC
Calling close changes $!. Store its value immediately after the failed open. لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ	[reply]
Re^5: Perl open pipe exiting early by albob (Sexton) on Apr 03, 2015 at 14:55 UTC
Re^4: Perl open pipe exiting early by RichardK (Parson) on Apr 03, 2015 at 13:50 UTC
In that case, single step through your code with the debugger and see what it's really doing. see perldebtut and the Basic Debugging Checklist.	[reply]
Re^5: Perl open pipe exiting early by albob (Sexton) on Apr 03, 2015 at 14:57 UTC