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Git Cheat Sheet

A simple Git cheat sheet for the basic commands and working with a git repo, in our case Github.

To start, you can always use git help to see a basic list of commands.

Git Terminology:

master default branch we develop in
origin default upstream repo (Github)
HEAD current branch
remote repository stored on another computer
staging (adding) adding changed files to index tree to be committed

Here’s a good glossary of definitions.

Starting a Repo init/clone/remote

git init Create a repo from existing data
git clone <repo url> Clone a current repo (into a folder with same name as repo)
git clone <repo url> <folder name> Clone a repo into a specific folder name
git clone <repo url> . Clone a repo into current directory (should be an empty directory)
git remote add origin<repo name>.git Create a remote repo named origin pointing at your Github repo (after you’ve already created the repo on Github) (used if you git init since the repo you created locally isn’t linked to a remote repo yet)
git remote add origin [email protected]:username/<repo name>.git Create a remote repo named origin pointing at your Github repo (using SSH url instead of HTTP url)
git remote Show the names of the remote repositories you’ve set up
git remote -v Show the names and URLs of the remote repositories
git remote rm <remote name> Remove a remote repository
git remote set-url origin <git url> Change the URL of the git repo
git push Push your changes to the origin

Showing Changes status/diff/log/blame

git status Show the files changed
git diff Show changes to files compared to last commit
git diff <filename> Show changes in single file compared to last commit
git diff <commit id> <commit id> Show changes between two different commits.
git log Show history of changes
git blame <filename> Show who changed each line of a file and when
Commit ID: This can be that giant long SHA-1 hash. You can call it many different ways. I usually just use the first 4 characters of the hash.

Undoing Changes reset/revert

git reset –hard Go back to the last commit (will not delete new unstaged files)
git revert HEAD Undo/revert last commit AND create a new commit
git revert <commit id> Undo/revert a specific commit AND create a new commit

Staging Files add/rm

git add -A Stage all files (new, modified, and deleted)
git add . Stage new and modified files (not deleted)
git add -u Stage modified and deleted files (not new)
git rm <filename> Remove a file and untrack it
git rm <filename> –cached Untrack a file only. It will still exist. Usually you will add this file to .gitignore after rm
Git Workflow Trees: How adding and committing moves files between the different git trees.

Working Tree The “tree” that holds all our current files.
Index (after adding/staging file) The “staging” area that holds files that need to be committed.
HEAD Tree that represents the last commit.

Publishing commit/stash/push

git commit -m “message” Commit the local changes that were staged
git commit -am “message” Stage files (modified and deleted, not new) and commit
git stash Take the uncommitted work (modified tracked files and staged changes) and saves it
git stash list Show list of stashes
git stash apply Reapply the latest stashed contents
git stash apply <stash id> Reapply a specific stash. (stash id = stash@{2})
git stash drop <stash id> Drop a specific stash
git push Push your changes to the origin
git push origin <local branch name> Push a branch to the origin
git tag <tag name> Tag a version (ie v1.0). Useful for Github releases.

Updating and Getting Code fetch/pull

git fetch Get the latest changes from origin (don’t merge)
git pull Get the latest changes from origin AND merge
git checkout -b <new branch name> origin/<branch name> Get a remote branch from origin into a local branch (naming the branch and switching to it)

Branching branch/checkout

git branch Show all branches (local)
git branch -a Show all branches (local and remote)
git branch <branch name> Create a branch from HEAD
git checkout -b <branch name> Create a new branch and switch to it
git checkout <branch name> Switch to an already created branch
git push origin <branch name> Push a branch up to the origin (Github)
git checkout -b <new branch name> origin/<branch name> Get a remote branch from origin into a local branch (naming the branch and switching to it)
git push origin –delete <branch name> Delete a branch locally and remotely

Integrating Branches merge/rebase

git checkout master
git merge <branch name>
Merge a specific branch into the master branch.
git rebase <branch name> Take all the changes in one branch and replay them on another. Usually used in a feature branch. Rebase the master to the feature branch so you are testing your feature on the latest main code base. Then merge to the master.
git cherry-pick <commit id> Merge just one specific commit from another branch to your current branch.
Merging: Merging will occur FROM the branch you name TO the branch you are currently in.
Rebasing: Usually switch to a feature branch (git checkout newFeature). Then rebase (git rebase master). Then merge back so you have all the changes of master and the feature branch (git checkout master, and git merge newFeature).

There you go! Hopefully that covers most of the basic ones and a few more. If you’d like to see any that haven’t been covered here, I’d be happy to add them. Also if you need a further explanation or demonstration, don’t be scared to ask. Happy gitting!

Cheat Sheet as a Chrome Extension

Interested in having this cheat sheet available in your Chrome browser for easy access? themergency has created this great Chrome extension!

Download it and enjoy.


Edit #1: Added rebase, cherry-pick, stash, rm
Edit #2: Added Chrome Extension by themergency

Chris Sevilleja

Design, development, and anything in between that I find interesting.

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