Master Essential Git Commands for Efficient Version Control

1. Basic Git Commands

Configure your identity for the first use of Git:

git config --global user.name "Your Name"
git config --global user.email [email protected]

Check the installed Git version:

git version
git -v

Initialize a new repository: git init Clone an existing remote repository: git clone <url> Add files to the staging area (examples):

git add *
git add .
git add -u .
git add -A .
git add *.html
git add *.txt
git add index/
git add index/index.html

Commit changes:

# Open editor for commit message
git commit
# Commit specific files
git commit file1 file2
# Commit with message
git commit -m "message"
# Commit all tracked changes without editor
git commit -am "message"
# Amend previous commit
git commit --amend -m "new message"

Show repository status: git status [options] [--] [path...] Branch management:

git branch               # list local branches
git branch -v            # list with last commit
git branch -vv           # list with upstream info
git branch -a            # list all branches
git branch -d branchName # delete local branch
git push <remote> -d branchName   # delete remote branch
git checkout branchName  # switch to branch
git checkout -b branchName # create and switch
git push <remote> <local>:<remote> # create remote branch

Checkout explanation:

git checkout branchName
git checkout -b branchName

2. Remote Repository Operations

Manage remote connections:

git remote
git remote -v
git remote add <name> <url>
git remote rm <name>
git remote rename old_name new_name

Push changes to remote:

git push <remote> <localBranch>:<remoteBranch>
# same name can omit remote branch
git push origin master
# Force push
git push --force origin master
# Delete remote branch
git push origin --delete master
# Set upstream
git push --set-upstream <remote> <branch>

Fetch and pull updates:

git fetch <remote>
# fetch specific branch
git fetch <remote> <branch>
git pull [options] [<remote> [<branch>]]
# Example: pull remote branch into local master
git pull origin next:master
# Pull with rebase
git pull --rebase <remote> <branch>

Stash changes:

git stash save "test-cmd-stash"
git stash list
git stash pop
git stash apply
git stash drop
git stash show

3. Log and History Commands

View commit history:

git log [options] [<since>..<until>] [--] [<path>...]

Common log options: -p: show patches --stat: file change statistics --shortstat: summary of stats --name-only: list changed files --name-status: show added/modified/deleted files --abbrev-commit: shorten SHA‑1 --relative-date: human‑readable dates --graph: ASCII graph of branches --pretty: custom format (oneline, short, full, fuller, format)

Summarize logs:

git shortlog [options] [revision range] [--] [path...]

4. Advanced Git Commands

Rebase to rewrite history: git rebase -i <startpoint> <endpoint> Bisect to find bad commits: git bisect <subcommand> <options> Cherry‑pick specific commits:

git cherry-pick <commitHash>
# multiple commits
git cherry-pick <HashA> <HashB>

Blame to trace line changes: git blame <filename> Tag management for releases:

git tag <tagName>
git push origin <tagName>
git push origin --tags
# Annotated tag on specific commit
git tag -a <tagName> <commitId>
git show <tagName>
# Delete tag
git tag -d <tagName>
git push origin :refs/tags/<tagName>

Verify signatures:

git verify-commit <commit>
git verify-tag [--format=<format>] <tag>…

Diff to compare changes:

# Working tree vs. index
git diff
# Working tree vs. HEAD
git diff HEAD
# Index vs. HEAD
git diff --cached
# Between two commits
git diff <commit1> <commit2>
# Specific file or directory
git diff <commit1> <commit2> -- path/

Graphical commit tool:

git citool