From Fedora Project Wiki
< Magazine
Logging in
ssh ...
Updating plugins
Plugins must be updated through a remote SSH session at the command line. However, the procedure is much the same as with any other self-hosted WordPress instance. The folder location is based on the fact that the Magazine runs on OpenShift.
ssh ... cd ... curl -s -o - http://<link to new plugin .tar.gz> | tar xz
Repeat the curl
command for each plugin that requires an update.
Updating WordPress
(TBD, basically you can do this at the CLI as well but you also have to restart the gears.)