How to uninstall or remove modemmanager-dbg software package from Ubuntu 14.04 LTS (Trusty Tahr)

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

$ sudo apt-get remove modemmanager-dbg

Uninstall modemmanager-dbg including dependent package

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

$ sudo apt-get remove --auto-remove modemmanager-dbg

Use Purging modemmanager-dbg

If you use with purge options to modemmanager-dbg package all the configuration and dependent packages will be removed.

$ sudo apt-get purge modemmanager-dbg

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 modemmanager-dbg