deluser
Delete a user from the system. tldr-pages
On Linux
Linux
Remove a user
sudo deluser usernameIdentifyRemove a user and their home directory
sudo deluser --remove-home usernameIdentifyRemove a user and their home, but backup their files into a .tar.gz file in the specified directory
sudo deluser --backup-to path/to/backup_directory --remove-home usernameIdentifyRemove a user, and all files owned by them
sudo deluser --remove-all-files usernameIdentifyRemove a user from a group, without deleting the user
sudo deluser username groupIdentify