What is Perl?
Perl is a general purpose language for getting things done, especially in text processing. Created by Larry Wall, the Perl language is managed by The Perl Foundation. For the latest language news and versions, check out Perl.org.
To setup required environment variables for Perl with base modules, please use following command:
| System | Version | Command |
|---|---|---|
| HPC2021 | 5.34.0 | module load perl/5.34.0 |
Managing additional Perl modules
The environment module above only contains the base Perl modules and user may install additional Perl module using the following environment module.
| System | Version | Command |
|---|---|---|
| HPC2021 | 5.34.0 | module load perl-lib/5.34.0 |
CPAN Minus is a light-weight replacement for CPAN. In order to install your own Perl modules, you can use the CPAN Minus tool (cpanm).
For example, a user may run the following to install the “JSON” Perl module described at https://metacpan.org/pod/JSON to a local Perl libary folder (i.e ~/perl/lib/5.34.0, please create it with “mkdir -p ~/perl/lib/5.34.0” if it is not present)
Install Perl Module
$ module load perl/5.34.0 perl-lib/5.34.0 $ cpanm install JSON install is up to date. (0.01) --> Working on JSON Fetching http://www.cpan.org/authors/id/I/IS/ISHIGAKI/JSON-4.03.tar.gz ... OK Configuring JSON-4.03 ... OK Building and testing JSON-4.03 ... OK Successfully installed JSON-4.03 1 distribution installed
Uninstall Perl Module
$ module load perl/5.34.0 perl-lib/5.34.0 $ cpanm --uninstall JSON JSON contains the following files: /home/$USER/perl/lib/5.34.0/lib/perl5/JSON.pm /home/$USER/perl/lib/5.34.0/lib/perl5/JSON/backportPP.pm /home/$USER/perl/lib/5.34.0/lib/perl5/JSON/backportPP/Boolean.pm /home/$USER/perl/lib/5.34.0/lib/perl5/JSON/backportPP/Compat5005.pm /home/$USER/perl/lib/5.34.0/lib/perl5/JSON/backportPP/Compat5006.pm /home/$USER/perl/lib/5.34.0/man/man3/JSON.3 /home/$USER/perl/lib/5.34.0/man/man3/JSON::backportPP.3 /home/$USER/perl/lib/5.34.0/man/man3/JSON::backportPP::Boolean.3 /home/$USER/perl/lib/5.34.0/man/man3/JSON::backportPP::Compat5005.3 /home/$USER/perl/lib/5.34.0/man/man3/JSON::backportPP::Compat5006.3 Are you sure you want to uninstall JSON? [y] y Unlink: /home/$USER/perl/lib/5.34.0/lib/perl5/JSON.pm Unlink: /home/$USER/perl/lib/5.34.0/lib/perl5/JSON/backportPP.pm Unlink: /home/$USER/perl/lib/5.34.0/lib/perl5/JSON/backportPP/Boolean.pm Unlink: /home/$USER/perl/lib/5.34.0/lib/perl5/JSON/backportPP/Compat5005.pm Unlink: /home/$USER/perl/lib/5.34.0/lib/perl5/JSON/backportPP/Compat5006.pm Unlink: /home/$USER/perl/lib/5.34.0/man/man3/JSON.3 Unlink: /home/$USER/perl/lib/5.34.0/man/man3/JSON::backportPP.3 Unlink: /home/$USER/perl/lib/5.34.0/man/man3/JSON::backportPP::Boolean.3 Unlink: /home/$USER/perl/lib/5.34.0/man/man3/JSON::backportPP::Compat5005.3 Unlink: /home/$USER/perl/lib/5.34.0/man/man3/JSON::backportPP::Compat5006.3 Unlink: /home/$USER/perl/lib/5.34.0/lib/perl5/x86_64-linux-thread-multi/auto/JSON/.packlist Successfully uninstalled JSON