Pattern matching File

10.128.99.190 10.128.100.100

1.1.1.1 2.2.2.2

3.3.3.3 4.4.4.4

100.100.100.100 200.200.200.200 

My program
#!/usr/bin/perl -w
use strict;
my $source=shift @ARGV;
open(FH,'<',$source) or die "I can't open the file $!\n";
while(<FH>)
               {
                      s/^(\d*).(\d*)/X.X/g;
                }
close FH;

[download]

output:

X.X.99.190 10.128.100.100

X.X.1.1 2.2.2.2

X.X.3.3 4.4.4.4

X.X.100.100 200.200.200.200

I want the first 2 octets of other string should also be X and X How to do that?

In reply to Patternmatching IPaddresses by vyeddula

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