subscribe http://host.domain/path/to/file.rss .. subscribe to the given RSS URL
unsubscribe http://host.domain/path/to/file.rss .. unsubscribe from the given RSS URL
list .. list currently subscribed RSS URLs (if a URL is marked with "error" it means that the last update of the RSS resource failed for some reason)
info http://host.domain/path/to/file.rss .. display some information about the given RSS URL
set plaintext .. set the message type for headline notifications to normal/plaintext
set chat .. set the message type for headline notifications to chat/plaintext
set headline .. set the message type for headline notifications to headline (please note that not all Jabber clients support headline messages)
set also_deliver {Away} {XA} {DND} .. also deliver headline messages when your presence is "Away", "Extended Away" or "Do Not Disturb"
set size_limit <num> .. limit the size of headline message to the specified amount of bytes
set store_messages <num> .. store at must the specified number of messages for later delivery (note that there is a hard limit of 48)
set header {Title} {URL} .. include an optional header line in headline notifications with the title and/or URL of the feed
set subject {Title} {URL} .. include an optional subject in headline notifications with the title and/or URL of the feed
configuration .. displays your current configuration
show statistics .. displays some basic server statistics
show usage .. displays some basic usage statistics