my $filename = "file.gz";
my $reg1 = "Joe Sinclair";
my $reg2 = "Bill Halburg";
open INFILE, 'zcat $filename  |' or print "ERROR - Could not open $filename";
while($line = <INFILE>) {
	print $line if($line =~ /$reg1/);
        print $line if($line =~ /$reg2/);
}
close(INFILE);