in reply to Modify system() call output only if printed to STDERR

Sounds like a job for IPC::Run3 to me.

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Re^2: Modify system() call output only if printed to STDERR
by nysus (Parson) on Jan 24, 2018 at 17:14 UTC

    Perfect. Got it with:

    run3 ['lpass', $cmd, $args], undef, undef, \&_filter;

sub _filter {
  my $output = shift;
  $output =~ s/lpass/lpp/gm;
  print $output;
}

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    What the hell will they think of next. :)

    $PM = "Perl Monk's";
    $MCF = "Most Clueless Friar Abbot Bishop Pontiff Deacon Curate Priest";
    $nysus = $PM . ' ' . $MCF;
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