Update all Perl modules via CPAN

This is a quick tip to update all installed modules, just type:

perl -MCPAN -e 'CPAN::Shell->install(CPAN::Shell->r)'

Creating and maintaining Perl command-line scripts

In bioinformatics 90% of Perl scripts are command-line scripts and they should be written fast (because our bosses want results at the end of the day). Of course, Perl is perfect for this task, also called "quick and dirty" scripts and you may think will be fine create a messy script that will be used just once, right?

But a problem with "quick and dirty" scripts is that they usually live more than one run. Sometimes it becomes part of your mainstream pipeline and maintain that script is a pain.
Well, so how can we avoid unmaintainable command-line scripts?