The subscriptions.conf file defines the local subscriptions
that are active. It is normally located in the /etc/cups
directory and is generated automatically by the cupsd(8)
program when subscriptions are created, renewed, or cancelled.
Each line in the file can be a configuration directive, a blank line,
or a comment. Comment lines start with the # character.
<Subscription NNN> ... </Subscription>
Defines a subscription.
Events name [ ... name ]
Specifies the events that are subscribed.
Specifies the expiration time of a subscription as a UNIX time
value in seconds since January 1st, 1970.
Specifies the preferred time interval for event notifications in
Specifies the job ID associated with the subscription.
Specifies the number of seconds that the subscription is valid
for. If 0, the subscription does not expire.
Specifies the next notify-sequence-number to use for the
Specifies the next subscription-id to use.
Specifies the user that owns the subscription.
Specifies the printer or class associated with the subscription.
Specifies the notify-recipient-uri value for push-type notifications.
Specifies user data to be included in event notifications. This
is typically the "from" address in mailto: notifications.