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Re: Re: Re: Re: Re: Handling program output in real time

by Anonymous Monk
on Nov 10, 2003 at 08:25 UTC ( #305827=note: print w/replies, xml ) Need Help??


in reply to Re: Re: Re: Re: Handling program output in real time
in thread Handling program output in real time

Not pretty, and perhaps there are better ways, but this may get you started anyway:

#!/usr/bin/perl -w use strict; use IO::Pty; my $pty = new IO::Pty; my $slave = $pty->slave(); my $pid = fork(); die "Couldn't fork: $!" unless defined $pid; if($pid){ # dup STDOUT to Pty and run external program: $pty->close_slave(); open(STDOUT, ">&",$pty)||die $!; system "perl blackbox.pl"; print "\cD"; # send ^d to end } else { # this is your monitoring process $pty->make_slave_controlling_terminal(); print "*$_" while <$slave>; exit; } __END__

Works for me on Linux.

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