How to uninstall or remove lua-rex-posix software package from Ubuntu 14.04 LTS (Trusty Tahr)

You can uninstall or removes an installed lua-rex-posix package itself from Ubuntu 14.04 LTS (Trusty Tahr) through the terminal,

$ sudo apt-get remove lua-rex-posix

Uninstall lua-rex-posix including dependent package

If you would like to remove lua-rex-posix and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove lua-rex-posix

Use Purging lua-rex-posix

If you use with purge options to lua-rex-posix package all the configuration and dependent packages will be removed.

$ sudo apt-get purge lua-rex-posix

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove lua-rex-posix