Perl

The default version of Perl on Katana is 5.16.3 which is provided by CentOS 7 and can be found at /usr/bin/perl.

This is an older version of Perl. We have Perl 5.28.0 installed as a module.

It is common for perl scripts to begin with

#!/usr/bin/perl

If you are using the Perl module, you will need to change the first line to

#!/usr/bin/env perl