Let's not forget that the process no longer exists after the qx completes. But anyway, you could do this using open instead of qx, e.g.: (updated to correct pipe direction) 
use POSIX ":sys_wait_h";

# e.g.:
my ($pid, $listing) = pidqx( "ls" );

sub pidqx { # returns pid + the usual backtick result
    my $pid = open my $ph, "$_[0] |" or die "$!: $_[0]";
    local $/ = undef();
    my $backtick = <$ph>;
    close $ph;
    waitpid $pid, 0; 
    return ( $pid, $backtick );
}

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-M

Free your mind

In reply to Re: Process ID of qx by Moron
in thread Process ID of qx by ropey

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