Perl is a family of programming languages.
Availability and Restrictions
Versions
A system version of Perl is available on all clusters. A Perl module is available on the Owens cluster. The following are the Perl versions currently available at OSC:
| Version | Owens | Pitzer | Notes |
|---|---|---|---|
| 5.16.3 | X# | X# | |
| 5.26.1 | X* | **See note below. | |
| 5.26.3 | X | X | cpanminus available and multi-threading support |
You can use module spider perl to view available modules for a given cluster. Feel free to contact OSC Help if you need other versions for your work.
Access
Perl is available to all OSC users. If you have any questions, please contact OSC Help.
Publisher/Vendor/Repository and License Type
https://www.perl.org, Open source
Usage
Each cluster has a version of Perl that is part of the Operating System (OS). Some perl scripts (usually such files have a .pl extension) may require particular Perl Modules (PMs) (usually such files have a .pm extension). In some cases particular PMs are not part of the OS; in those cases, users should install those PMs; for background and a general recipe see HOWTO: Install your own Perl modules. In other cases a PM may be part of the OS but in an unknown location; in that case an error like this is emitted: Can't locate Shell.pm in @INC; and users can rectify this by locating the PM with the command locate Shell.pm and then adding that path to the environment variable PERL5LIB, e.g. in csh syntax: setenv PERL5LIB "/usr/share/perl5/CPAN:$PERL5LIB"
Usage on Owens
Set-up
To configure your enviorment for use of a non system version of Perl, use command module load perl. This will load the default version.
Installing Perl Modules
To install your own Perl modules locally, use CPAN Minus. Instructions for installing modules for system Perl are available here. Note that you do not need to load the cpanminus module if you are using a non-system Perl.
