I use Git Tower to manage my Git repositories on OS X, so I'm looking for an answer which let me use that software or simply the Git cli.
I have some Git (private GitHub) repositories cloned locally, I never work on them but I need them to be always updated because I run the software contained in these repositories (or I use some part of these repositories as dependencies of another repository, no submodule, sorry).
So, I'm looking for a way to keep these repositories always updated. How can I do?