Git

• basic setup

  $ git config --global user.name "John Doe"
  $ git config --global user.email johndoe@example.com
  

• create new key pair

  ssh-keygen -t ed25519 -b 4096 -C "{username@emaildomain.com}" -f {ssh-key-name}
  

Copy the new key file to the ssh directory

cp {ssh-key-name} ~/.ssh/

Then add the below to ~/.ssh/config

Host bitbucket.org
  AddKeysToAgent yes
  IdentityFile ~/.ssh/{ssh-key-name}

• Add the SSH Public Key to Bitbucket : Link

Notes:

• undo last commit [SRC]

  $ git log --oneline
  
  3fad532  Last commit   (HEAD)
  3bnaj03  Commit before HEAD   (HEAD~1)
  vcn3ed5  Two commits before HEAD   (HEAD~2)
  
  $ git reset --soft HEAD~1