$user_confdir

Path to user configuration directory

Default: $HOME/.$package_name

$user_datadir

Path to user data directory

Default: $user_confdir/data

$user_logdir

Path to user log directory

Default: $user_confdir/logs

$user_tempdir

Path to user temporary directory

Default: $tmpdir/$package_name-$USER

$user_id

Numeric user id of the current user.

is_superuser()

Returns success if the current user is the superuser.

require_superuser()

Produces an error if the current user is not the superuser.