Introduction to Git - Core Concepts. Twitter: @davidmahler LinkedIn: References: Pro Git by Scott Chacon - Visual Git Reference by Mark Lodato - Commands used in this video: git init - initialize a new repo in a directory git config --global "name" git config --global "email" (--local option as well) git status - see the state of files in working tree, staging area vs latest commit in git history git add - move file(s) to the staging area git log - view the git history / git commit graph git diff - diff of working tree and staging area git diff --cached - diff of staging area and latest commit git rm - remove a file from the working tree and the staging area git checkout -- filename - retrieve a file from the staging area into the working tree git reset HEAD filename - retrieve a file from the latest commit into the staging area git checkout (commit hash) filename - retrieve a file from a previous commit