or a "one liner" with strict matching

use strict;

while (<DATA>)
  {
  print "$_" if s/(?:\b\d{1,3}\.){3}\d{1,3}\b/xxx.xxx.xxx.xxx/g;
  }

[download]
__DATA__
set something 111.111.111.111 255.255.255.0
set something else 10.03.000.1
don't set something 1234.123.123.123
set some things 1234.123.123.123 123.123.123.123 123.123.123.1234

set something xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx
set something else xxx.xxx.xxx.xxx
set some things 1234.123.123.123 xxx.xxx.xxx.xxx 123.123.123.1234

[download]
Perl is Huffman encoded by design.

In reply to Re: Masking IPs by GrandFather
in thread Masking IPs by adam.lapins

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