libsub-override-perl software package provides Perl module used to temporarily override subroutines, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libsub-override-perl
libsub-override-perl is installed in your system.
Make ensure the libsub-override-perl package were installed using the commands given below,
$ sudo dpkg-query -l | grep libsub-override-perl *
You will get with libsub-override-perl package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Perl |
| Package | libsub-override-perl |
| Version | 0.09-1 |
| Description | Perl module used to temporarily override subroutines |
| Sub Section | Perl |