This command enables a tor hidden service for git-annex.
It modifies /etc/tor/torrc to register the hidden service. If run as a normal user, it will try to use
sudo/su/etc to get root access to modify that file. If you run it as root, pass it your non-root user id
number, as output by id-u
After this command is run, gitannexremotedaemon can be run to serve the tor hidden service, and then
git-annexp2p--gen-addresses can be run to give other users access to your repository via the tor hidden
service.