installing git-flow on Ubuntu Linux
If you have heard of Git Flow, and you use Ubunut Linux, then you can install it using the following instructions.
Download the latest .deb package file from https://launchpad.net/ubuntu/precise/i386/git-flow/, and then install it thus ...
wget -P ~/Downloads http://launchpadlibrarian.net/84618376/git-flow_0.4.1-2_all.deb sudo dpkg -i ~/Downloads/git-flow_0.4.1-2_all.deb
If you haven't heard of Git Flow, then read all about it at http://nvie.com/posts/a-successful-git-branching-model/. If you haven't heard of Git, then you're either not a developer (in that case, ignore it), or you need to Google it.