perl -ne ' print "$1\n" if /\s(\d+\.\d+\.\d+\.\d+)\s/ ' file is better.
- simple regexp Matija Papec
- Re: simple regexp John Edwards
- Re: simple regexp George S Pereira
- Re: simple regexp Matija Papec
- Re: simple regexp Matija Papec
- RE: simple regexp John Edwards
- Re: simple regexp Mario Todorow
- Re: simple regexp Mario Todorow
- Re: simple regexp Matija Papec