repo Installation Instructions - magic-lantern-android-studio/mle-documentation GitHub Wiki
repo is a tool from Google that can be used to retrieve multiple git repositories as a collection.
Make sure that you have a "bin/" directory in your home directory and that it's included in your path:
mkdir ~/bin
PATH=~/bin:$PATH
Download the Repo tool and ensure that it's executable:
curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo