• Create a git repository:
  git init
• Add files to the repository:
  git add [filename or "--all"]
• Committing the added files:
  git commit
• Creating a branch (current branch won't change - you'll have to perform a checkout after having created the new branch):
  git branch [name of new branch] [source branch]
• Check in which branch I am:
  git branch
• Check out a branch (!!TO AVOID COMPLICATIONS CHECK FIRST WITH git status THAT YOU HAVE NOTHING UN-ADDED OR UNCOMMITTED IN THE CURRENT BRANCH!!):
  git checkout [target branch]
• Merge a source branch into a target one:
  • Check (with "git status") that you have nothing un-added or uncommitted in both source and target branches.
  • Check out the target branch.
  • git merge [source branch]