git

Git is a version control tool used by Drupal.

It is recommended you learn git separately, but here are some commonly used commands:

git add - Adds files to staging area.
git commit - Commits files to repo.
- -a: Adds all unstaged files.
- -m: Sets commit message from command line.
- --amend: Amends the most recent commit message.
git push - Pushes local repo to a remote repo.
git pull - Incorporates changes from a remote repository into the current branch.
git clone - Clones a remote repo to your local system.
git checkout - Switch to another branch
- -b: Create a new branch prior to switching
git rebase - Changes the history of a commit relative to another commit.
git merge - Merges one branch into another.
git reset - Resets HEAD to specified state.
git clean - Removes unstaged files from working tree.
git revert - Reverts changes made in a commit.
git log - Show commit logs.

git cherry-pick - Applies changes introduced by another commit (useful across branches).
git bisect - Finds commit that introduced bug/functionality change using binary search which is O(lg n).
git grep - Find lines/files matching pattern within repo.
git reflog - Manage reflog information.
git gc - Performs garbage collection on local repository.

Additional Resources