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Capture external program return value

by llancet (Friar)
on May 02, 2010 at 01:50 UTC ( [id://837969]=perlquestion: print w/replies, xml ) Need Help??

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  1. or download this
    my $result = `blastall -i foo -o bar -p blastx -d baz`;

if ($!) {
  die "something bad happened: $!";
}
  2. or download this
    eval {
  $result = `......`;
...
if ($@) {
  die "......";
}

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