For these sorts of examples, I tend to use awk and sed too, but sometimes the sh...

salvadors on Aug 1, 2009 | parent | context | favorite | on: Famous Perl One-Liners Explained, Part II: Line Nu...

For these sorts of examples, I tend to use awk and sed too, but sometimes the shotgun is useful. One major advantage of using Perl in this context is that you also have -M, with all of CPAN at your disposal.