git clone <repo url>: downloads code from a code repository into your current directory
git remote -v: lists all the remotes and their short names (e.g., origin, upstream)
git remote add <name> <url>: adds the <url> to your remotes and gives it the short name <name> (e.g., git remote add origin <URL>)
git remote rm <name>: removes a remote by its shortname
git push <where> <what>: pushes code on the <what> branch to the <where> remote (e.g., git push origin master)
git pull <where> <what>: pulls does down from the <what> branch from the <where> remote (e.g., git pull origin master)