Installing Perl Modules

Testing for Installed Modules

To test if you have a module, try to run the command

perl -e "use Module::Name"

If there are no errors, you are in business.

Testing for presence and version number:

perl -MGD -e 'print $GD::VERSION';
perl -MSet::Array -e 'print $Set::Array::VERSION';
perl -MGetopt::Long -e 'print $Getopt::Long::VERSION';

To install directly from CPAN:

perl -MCPAN -e shell

This opens the interactive CPAN download/install tool. At the cpan prompt, type

cpan> install Set::Scalar

Alternatively, you can just type this:

perl -MCPAN -e "install Bundle::BioPerl"

Hint: upgrade to the latest version of CPAN:

cpan> install Bundle::CPAN

What To Do Once You've Downloaded A Module From The CPAN href="http://www.cpan.org/modules/INSTALL.html

After upacking the perl module package, cd to the newly created directory and enter these commands:

perl Makefile.PL
make
make test
make install