$ sudo apt-get remove libdrb-ruby

Uninstall libdrb-ruby including dependent package

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

$ sudo apt-get remove --auto-remove libdrb-ruby

Use Purging libdrb-ruby

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

$ sudo apt-get purge libdrb-ruby

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 libdrb-ruby

See Also,