$ sudo apt-get remove libcnoid1 

Uninstall libcnoid1 including dependent package

If you would like to remove libcnoid1 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libcnoid1 

Use Purging libcnoid1

If you use with purge options to libcnoid1 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libcnoid1 

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 libcnoid1 

See Also,