Tips for Writing Effective Perl Scripts. CPAN Modules: Utilize the Comprehensive Perl Archive Network (CPAN) to extend Perl's functionality. Debugging: Use Perl’s built-in debugging tool with perl -d ...

perl -p -i -e '$_ = "$. $_"' myfile This one takes a bit of explanation. The $. variable contains the line number, so the command reads “change the line to the line preceded by the line number”.

A Perl script which uses a number of modules such as IO:: ... The notes online say that port-proxy has been tested with Linux and Windows, but I’ve used it on Solaris and Mac OS X as well.

By automating the development of Perl CGI scripts, even entry-level developers can create CGI scripts that contain most of the commonly requested features in a short period of time--without manually ...