User Management

To add a new user, run:

sudo adduser userid

To add a system user suitable for running daemon processes, run:

sudo adduser --system --no-create-home --group userid

To add a system user with a defined home directory, run:

sudo adduser --system --home /dir --group userid

See man adduser for more options. NB. Maximum username length is 8 chars - although this script won't enforce it, it will stop many processes/tools from displaying the username properly.

To add a user to an existing group:

sudo adduser user group

To add a picture for a user (which will be displayed in the login screen, select System->Preferences->About Me