open( CMD, "$command |" ) or die "Cannot open $command: $!\n";
while ( defined( my $line = <CMD> ) ) {
    # Do stuff with $line which is the output from $command
}
close CMD;

[download]
Or, ikegami has a list of number of good modules that do similar things.

My wife's blog

In reply to Re^3: How to check a executable's status while running it. by dragonchild
in thread How to check a executable's status while running it. by Nesh

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