Agent Categories Gnus Unplugged Agent Expiry
All the Gnus Agent commands are on the J submap. The J j
gnus-agent-toggle-plugged command works in all modes, and
toggles the plugged/unplugged state of the Gnus Agent.
You can run a complete batch fetch from the command line with the following incantation:
$ emacs -batch -l ~/.gnus.el -f gnus-agent-batch-fetch