GIT Commands

List of Git commands

In this tutorial, we will cover common Git commands used in maintaining Git environment.

git config

Sets configuration values for your user name, email, gpg key, preferred diff algorithm, file formats, and more.  Example: git config --global user.name "My Name" git config --global user.email "user@domain.com" cat ~/.gitconfig [user] name = My Name email = user@domain.com

git init

Initializes a git repository – creates the initial ‘.git’ directory in a new or in an existing project.

 Example: cd /home/user/my_new_git_folder/ git init

git clone

Makes a Git repository copy from a remote source. Also adds the original location as a remote so you can fetch from it again and push to it if you have permissions.

 Example: git clone git@github.com:user/test.git

git add

Adds files changes in your working directory to your index.

 Example: git add .

git rm

Removes files from your index and your working directory so they will not be tracked.

 Example: git rm filename

git commit

Takes all of the changes written in the index, creates a new commit object pointing to it and sets the branch to point to that new commit.

 Examples: git commit -m ‘committing added changes’ git commit -a -m ‘committing all changes, equals to git add and git commit’

git status

Shows you the status of files in the index versus the working directory. It will list out files that are untracked (only in your working directory), modified (tracked but not yet updated in your index), and staged (added to your index and ready for committing).

 Example: git status # On branch master # # Initial commit # # Untracked files: # (use "git add <file>..." to include in what will be committed) # # README nothing added to commit but untracked files present (use "git add" to track)

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git branch

Lists existing branches, including remote branches if ‘-a’ is provided. Creates a new branch if a branch name is provided.

 Example: git branch -a * master remotes/origin/master

git checkout

Checks out a different branch – switches branches by updating the index, working tree, and HEAD to reflect the chosen branch.

 Example: git checkout new branch

git merge

Merges one or more branches into your current branch and automatically creates a new commit if there are no conflicts.

 Example: git merge new branch version

git reset

Resets your index and working directory to the state of your last commit.

 Example: git reset --hard HEAD

git stash

Temporarily saves changes that you don’t want to commit immediately. You can apply the changes later.

 Example: git stash Saved working directory and index state "WIP on master: 84f241e first commit" HEAD is now at 84f241e first commit (To restore them type "git stash apply")

GIT Rebase

git tag

Tags a specific commit with a simple, human readable handle that never moves.

 Example: git tag -a v1.0 -m 'this is version 1.0 tag'

git fetch

Fetches all the objects from the remote repository that are not present in the local one.

 Example: git fetch origin

git pull

Fetches the files from the remote repository and merges it with your local one. This command is equal to the git fetch and the git merge sequence.

 Example: git pull origin

git push

Pushes all the modified local objects to the remote repository and advances its branches.

 Example: git push origin master

git remote

Shows all the remote versions of your repository.

 Example: git remote origin

git log

Shows a listing of commits on a branch including the corresponding details.

 Example: git log commit 84f241e8a0d768fb37ff7ad40e294b61a99a0abe Author: User <user@domain.com> Date: Mon May 3 09:24:05 2010 +0300 first commit

git show

Shows information about a git object.

 Example: git show commit 84f241e8a0d768fb37ff7ad40e294b61a99a0abe Author: User <user@domain.com> Date: Mon May 3 09:24:05 2010 +0300 first commit diff --git a/README b/README new file mode 100644 index 0000000..e69de29

git ls-tree

Shows a tree object, including the mode and the name of each item and the SHA-1 value of the blob or the tree that it points to. Example: git ls-tree master^{tree} 100644 blob e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 README

git cat-file

Used to view the type of an object through the SHA-1 value.

 Example: git cat-file -t e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 blob

git grep

Lets you search through your trees of content for words and phrases.

git diff

Generates patch files or statistics of differences between paths or files in your git repository, or your index or your working directory.

 Example: git diff

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gitk

Graphical Tcl/Tk based interface to a local Git repository.

 Example: gitk

git instaweb

Runs a web server with an interface into your local repository and automatically directs a web browser to it.  Example: git instaweb --httpd=webrick git instaweb --stop

git archive

Creates a tar or zip file including the contents of a single tree from your repository.

 Example: git archive --format=zip master^ README >file.zip

git gc

Garbage collector for your repository. Optimizes your repository. Should be run occasionally.

 Example: git gc Counting objects: 7, done. Delta compression using up to 2 threads. Compressing objects: 100% (5/5), done. Writing objects: 100% (7/7), done. Total 7 (delta 1), reused 0 (delta 0)

git fsck

Does an integrity check of the Git file system, identifying corrupted objects.

 Example: git fsck

git prune

Removes objects that are no longer pointed to by any object in any reachable branch.

 Example: git prune

For an Indepth knowledge on Git, click on below

• GIT Rebase
• Tips & Tricks in GIT
• Source code management in GIT
• GIT-Workflow
• GIT Patch