To uninstall xsel just follow these instructions.
sudo apt-get remove xsel
This will remove just the xsel package itself.
sudo apt-get remove --auto-remove xsel
This will remove the xsel package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for xsel then this will work.
sudo apt-get purge xsel
Or similarly, like this xsel
sudo apt-get purge --auto-remove xsel
|Maintainer||Joe Nahmias <email@example.com>|
|Description||command-line tool to access X clipboard and selection buffers the X selection. It can also append and have it follow a growing file|