git-gitHub_commands.txt

Installing Git
 sudo apt-get update
 sudo apt-get install Git

Verifying the installation
 git --version

Configuring the username and email ID
 git config --global user.name "Username"
 git config --global user.email "Email"
 
Ignoring Credentails asking again and again for https:
 git config --global credential.helper ‘store’
 git config --global credential.helper ‘cache --timeout=3600’

SSH setting GIT and Remote Machine

1)    Go to terminal window
2)    Run the command cd ~/.ssh
3)    Now you are inside the .ssh directory of your system.
4)    Run the next command - ssh-keygen -t rsa -C “email-id”
5)    The above command will generate two ssh keys – Public and Private
6)    Go to your system home directory and look for .ssh directory and there you will find one .pub extension file.
7)    Open the file and you will see the public key.
8)    Copy the public key as it is.
9)    Open the GitHub setting page >> go to ssh keys tab >> click on new ssh key
10)    Add the key and save it.
11)    Now your local machine identity is verified by your GitHub account successfully.
12)    Verify the connection by running the command ssh -T git@github.com.
13)    You should receive a response as:
Hi username! You've successfully authenticated, but GitHub does not provide shell access.


Innitialize repo
 git init

Move the file from untracked/unstaged to staged area
 single file= git add <file name>
 multiple files=  git add .

Commit 
 New file= git commit -m "message"
 modified file= git commit -am "message"

Connect Local repo with Remote repo
 git remote add origin <repo url>

Verify GitHub
 git remote -v

Log commands
 Commit list in details= git log
 Commit list in one line= git log --oneline
 List of all the authors within the project (s=summary and n = numbered) = git shortlog -s -n
 Commits list by author= git log --author <Author Name>
 OR = git log --author=<2/3 starting letters>
 Logs of specific file= git log --author <Author Name> <filename>
 Logs for a specific file= git log -p <fileName>
 Decorated view of log= git log --all --decorate --oneline --graph
 OR= git log --graph --oneline
 Log view of specific commit= git show <comitid> --stat
 View last few commits= git log -<no of commits you want to view>
 View logs between specific dates= git log --after <date> --before <date>
 Detailed view of logs in one line= git log --stat --oneline

Renameing a file from git
 git mv <old name> <new name>

View the list of configuration
 git config --global --list

Alias:
 git config --global alias.br branch
 git config --global alias.ci commit
 git config --global alias.st status
 git config --global --unset "alias.name"
 git config --global --unset-all

Diff commands:
 Difference between two commits= git diff <old commit> <new commit>
 Modified VS Commited = git diff <filename>
 Staged VS Commited = git diff --staged <Filename>
 Staged VS Specific Commit = git diff <commit ID>
 Remote VS Local = git diff origin/master master

Pushing Changes to remote Repo
 1st time push= git push -u origin <remote branch>
 multiple times push= git push

Cloning a repo
 Complete repo= git clone <URL of the repo>
 Only a branch from the repo= git clone -b <Branch name><Repository URL>

View List of Files
 List all files – git ls-files
 List stagged files – git ls-files --stage
 List of file in a directory – git ls-files --directory <dir name>

Configure git ignore to your system
 git config --global core.excludesFile <PATH TO .GITGNORE FILE>

Checkout Commands:
 To switch to a branch = git checkout <branchname>
 To switch to a remote branch = git checkout <remotebranch>
 To switch to a commit git checkout commitid
 To switch to a tag git checkout tagname


Clean Command
 To view the implication of the clean command - Git clean –dry-run
 To force delete the file from the repo - Git clean -f
 To delete dir - Git clean -f -d
 To delete all the files and dir - Git clean -f -d
 To delete all the ignored file in one go - Git clean -f -x
 To delete all the files and dir incliding ignored files - Git clean -f -d -x

RM Command
 Removes the file from the git and the file system - git rm -f <filename>
 Removes the file only from git repo but actual file will still be there in the project – git rm --cached <filename>

Reset Command
 Move the file to Staging area= git reset --soft <commit-id> 
 Move the file to unstaged area= git reset --mixed <commit-id> 
 Move the files out of records or reverts the file to the stage of previous commited stage git reset --hard <commit-id>

Revert Command
 git revert <commitID>
 Note:- when you want to revert from 5th commit to 3rd commit then pass the commit id of 4th Commit to revert to the 3rd commit stage.

Amend Command
 git commit --amend -m “message”

Tag Command
 Annotated tag= git tag -a <tagname> <commit-id> -m "Message here"
 Lightweight tag= git tag <tag name> <commit-id>
 Get the list of tags= git tag --list
 Get the list of tags with their messages= git tag -n
 Delete a tag= git tag -d <tagname>
 View a specific tag= git show <tagname> 
 Pushing tags to remote repo= git push --tags
 Delete tag from remote= git push --delete origin <tagname>

Stashing Commands
 To stash all the files – git stash
 To show the list of files stashed – git stash list
 To show the latest stash or files stashed at 0th position – git stash show
 To show the stashed records at position 1 – git stash show {1} or use git stash show <stash@{0}>.
 To stash with a message – Git stash save “message”
 To get the files back to work – Git stash pop
 To get back the stashed files at position 1 – Git stash pop {1}
 This will remove the files from the position 1 and it will also delete the change completely and u cannot undo this – Git stash drop {1} / {stash-id}
 Remove all the stashed files in one go – Git stash clear
 Stash Show more details= git stash show -p
 Stashing a single file= git stash -- <filename>

Git Branching
1)	I want to see the branches available in this repository then: Git branch
2)	I want to see all the branches including local and remote branches: Git branch -a
3)	I want to see all the branches and their last/latest commits along with their message: Git branch -v
4)	Delete a branch: Git branch <branchname> -d 
5)	Rename a branch: Git branch -m  <oldName> <newName>
6)	If you are on the branch you want to rename: git branch -m new-name
7) to check the parent of a branch = git log -g <branch name>


Change the default branch
 git push --set-upstream origin <branchname>