Cheatsheet - https://training.github.com/downloads/github-git-cheat-sheet/ ↗

• install git
• config git name and email
• Auth / Connect to GH can be done via: HTTPS / SSH

SSH Auth#

SSH URLs provide access to a Git repository via SSH, a secure protocol. To use these URLs, you must generate an SSH keypair on your computer and add the public key to your account on GitHub. For more information, see Connecting to GitHub with SSH ↗.

• Generating a new SSH key and adding it to the ssh-agent ↗
• Adding a new SSH key to your GitHub account ↗ 
• About commit signature verification ↗ .
• Working with SSH key passphrases ↗

1. Generate SSH key
   • ssh-keygen -t ed25519 -C "your_email@example.com"
   • give location to save
   • enter passphrase if needed
2. Adding your SSH key to the ssh-agent
   • Start the ssh-agent in the background. : eval "$(ssh-agent -s)"
   • Add your SSH private key to the ssh-agent : ssh-add ~/.ssh/id_ed25519
3. Add the SSH public key to your account on GitHub.
   • Copy the SSH public key to your clipboard : cat ~/.ssh/id_ed25519.pub
   • Go to Github Settings -> Access -> SSH and GPG keys.
   • Click New SSH key or Add SSH key.
   • In the “Title” field, add a descriptive label for the new key.
   • Select the type of key, either authentication or signing. For more information about commit signing, see About commit signature verification ↗.
   • In the “Key” field, paste your public key.
   • Click Add SSH key.
   • If prompted, confirm access to your account on GitHub.
4. Test SSH connection
   • ssh -T git@github.com
   • verify fingerprint
   • Then if you get this message : Hi USERNAME! You've successfully authenticated, but GitHub does not provide shell access. :: SUCCESS.

Config#

git config --list

Actions#

fetch - fetches content in server and adds to master branch
pull = fetch + merge

to show change history of files
git log —follow -p — file

Tips#

Add .patch to the end of a github commit url to see details about that commit (Including author,author email, commit diffs).