Hi Jerry, Most of the perl distribution comes with cpan. If you don't have cpan by default (say you work with active perl), I suggest you work with distribution that supplies cpan. If you work on windows I reccomend to work with cygwin (http://www.cygwin.com/).
Best regards, Yaron Kahanovitch ----- Original Message ----- From: "Jerry Krinock" <[EMAIL PROTECTED]> To: beginners@perl.org Sent: Monday, July 30, 2007 1:00:17 AM (GMT+0200) Auto-Detected Subject: Re: Light at the end of Module Prerequisite Tunnel? Thanks Shawn and Yaron; I think I got it. The 'cpan' module does make life much easier. I wrote this little summary for the next time I need a module. *** PERL MODULE MANAGEMENT FOR REAL DUMMIES *** CHECKING YOUR SYSTEM TO SEE IF A MODULE IS PRESENT At your computer's command line, type perl -M<module> -e '' Example: To see if you have XML::Parser perl -MXML::Parser -e '' If the command executes with no complaint, the modules is present. DOWNLOADING AND INSTALLING MODULES THAT YOU DON'T HAVE If you want to use in your perl scripts a published perl modules that you've read about, you can save yourself alot of work by installing the module "cpan" which is a "module for installing modules". Get it from here: http://search.cpan.org/~jhi/perl-5.8.1/lib/CPAN/bin/cpan Then, whenever you want to use a module you don't have installed, type at your computer's command line: sudo perl -MCPAN -e shell The sudo is used since some modules want to install either source code or, more frequently, documentation, in system directories such as / Library/Perl. Perl will launch and give you a cpan shell with a prompt cpan> At this prompt, use the 'install' command to download and install a module you need. Example: install Module::IWant and then watch the show until it is over, indicated by the cpan> prompt returning. Leave this command-line window open because you may need it again... Now, attempt to use the newly-installed module in a script. If you get an error(s) like this: "Can't locate Some/Module.pm" this probably means that your newly-installed module requires prerequisite modules that you do not have installed. Don't cry. Go back to your command line running cpan and install the prerequisite module(s) by typing at the cpan> prompt: install Some::Module Then try to run your script again. Repeat installing prerequisite modules until you get no more errors and your script works. Note that some module names have more than two ancestors. For example to if perl "Can't locate Some/Very/Deep/Module.pm" type after cpan> prompt install Some::Very::Deep::Module -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/ -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
