#!/usr/bin/perl
use strict ;
use warnings ;
use IO::Uncompress::UnXz qw($UnXzError);
die "Usage: gzgrep pattern [file...]\n"
unless @ARGV >= 1;
my $pattern = shift ;
my $file ;
@ARGV = '-' unless @ARGV ;
foreach $file (@ARGV) {
my $gz = new IO::Uncompress::UnXz $file
or die "Cannot uncompress $file: $UnXzError\n" ;
while (<$gz>) {
print if /$pattern/ ;
}
die "Error reading from $file: $UnXzError\n"
if $UnXzError ;
}