What are all the crazy @listchannels arguments?
There are a couple kinds of arguments for @listchannels. There are arguments saying what you want to list, arguments saying the order you want to list them in, and arguments saying the format you want for the listings. To specify what to list, you can provide a category (which lists things in that category), a channel name prefix (which lists all channels with that prefix), -like text (which lists all channels which contain that text), -all (which lists all channels), and -member/-nomember/-flag [!]channel flag (which lists channels with the given flag [un]settings). To specify order, you can use -byname, -bycreated and -bylast — if you use a + instead of the – it reverses the sort order. Finally, to specify format you can use -tail amount, or 10 (which limits to the last amount results), -count (which just shows the number of channels that would have been listed), and -name/-topic/-created/-last (which set what information is displayed about the channel — -name gives a non-truncated
