getmail_fetch(1) on Linux
The text 6334f5ebf821, as Debian 10 (Buster) shipped it.
retrieve messages from one or more POP3 or POP3-over-SSL mailboxes and deliver to a maildir, mboxrd-format mbox file, or external MDA
Flags it lists
-
--apop -
--delete -
--help -
--message -
--port -
--quiet -
--ssl -
--timeout -
--verbose -
--version -
-a -
-d -
-h -
-m -
-p -
-q -
-s -
-t -
-v