offlineimap(1) on Linux
The text af3b82f89eec, as Debian 5.0 (Lenny) shipped it.
Powerful IMAP/Maildir synchronization and reader support
Flags it lists
-
--help -
-1 -
-P -
-a -
-c -
-d -
-f -
-h -
-k -
-l -
-o -
-q -
-u