# Do not run passwd to set the password extern "adduser" [ --disabled-login # Do not run passwd to set the password --disabled-password # Do not set password, but allow non-password logins (e.g. SSH RSA) --force-badname # Apply only a weak check for validity of the user/group name --group # Create a group --help # Display brief instructions --no-create-home # Do not create the home directory --quiet # Suppress informational messages, only show warnings and errors --debug # Be verbose, most useful if you want to nail down a problem with adduser --system # Create a system user or group --add_extra_groups # Add new user to extra groups defined in the configuration file --version # Display version and copyright information ...args ]