#! perl -wl
die unless defined($outdir=shift@ARGV);
while(<STDIN>){
    next if /^#/;
    chomp;
    next if $a{$_};
    # true is needed for set -e
    print "apt-file search -x '$_\\.pc\$' | grep /$_ >> $outdir/pc/pc-$_.out || true";
    $a{$_}=1;
}