libplack-middleware-expires-pe software package provides mod_expires for plack, 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 libplack-middleware-expires-pe
libplack-middleware-expires-pe is installed in your system.
Make ensure the libplack-middleware-expires-pe package were installed using the commands given below,
$ sudo dpkg-query -l | grep libplack-middleware-expires-pe*
You will get with libplack-middleware-expires-pe package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Perl |
| Package | libplack-middleware-expires-pe |
| Version | 0.03-1 |
| Description | mod_expires for plack |
| Sub Section | Perl |