This page provides a basic tutorial on understanding, creating and using regular expressions in Perl. It serves as a complement to the reference page on regular expressions perlre. Regular expressions are an integral part of the m//, s///, qr// and split operators and so this tutorial also overlaps with "Regexp Quote-Like Operators" in perlop and "split" in perlfunc.
Any system administrator worth their salt has some kind of system for collecting and maintaining information about all the systems they're responsible for. Gathering that info by hand, especially when the systems are inherited, can be time-consuming. Or you could try out boxinfo, a Perl script that gathers most or all of the information you'd want in a few easy steps. Boxinfo is simple to run, just run it on any Linux system that has Perl and it will look for information about the disk space, processor, memory, network interfaces, mounted disks, versions of utilities, and general system environment. Once finished, it prints out an HTML page or page in Wikimedia format, and a debug file that shows all commands run and the output. This can be useful to identify Perl modules you might be missing to gather information.
MiniCPAN http://www.perladvent.org/2004/5th/ details a mechanism to mirror the latest version of CPAN modules. this will grab all the CPAN modules and create a local mirror. Annotated link http://www.diigo.com/bookmark/http%3A%2F%2Ftwiki.org%2Fcgi-bin%2Fview%2FTWiki%2FHowToInstallCpanModules
visual guide to Circos A visual guide to Circos (Circos - an information aesthetic for comparative genomics) presents some of the capabilities of Circos and illustrates its application in the field of comparative genomics and genome visualization.
CPAN++ (also referred to and pronounced as CPANPLUS) is a new and flexible method of perl module management and installation using the Comprehensive Perl Archive Network (CPAN). It aims to be a rewrite, and in time a replacement to the current CPAN.pm. In