git.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 --list
 git config --global user.name "Username"
 git config --global user.email "Email"

Change the defaultbranch name of the Main from Master use:
 git config --global init.defaultBranch main

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"

Remote Repo
Connect Local repo with Remote repo: git remote add origin <repo url>
Verify remote connections: git remote -v
Remove remote repo: git remote remove <name of the remote repo>

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
 To read the total count of commits in the repo: git log --oneline | wc -l
 To view the backend log with even the hidden steps we can use: git reflog

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

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>
8) To view only the remote branch list: git branch -r
9) To create a branch and move inside the newly created branch in one go: git checkout -b <branch name>

Git Merging
1) git merge

git rebase
1) git rebase

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