Debian Supprimer completement un utilisateur

# remove all files owned by user
deluser -remove-all-files USERNAME

# Supprimer que la /home/USER de l'utilisateur
deluser --remove-home USERNAME

# Source : http://www.howtoforge.com/linux_remove_users

# Disable the user's password, effectively locking him out.
passwd -l USERNAME

# Find The User's Files
find / -user USERNAME

# Login Shell
/etc/passwd

# Kill The User's Processes
ps aux | grep -i ^USERNAME