Basic git commands

Git Commands.md

Basic git command

• General commands: create branch, add changes to git, commit/save changes, push code

  $ git checkout -b [branch name] // create branch - git checkout -b master

  $ git add . // add code to git

  $ git commit -m "message" // commit chages

  $ git push origin branch_name // push code to origin - git psh origin master

• check status of git: $ git status

• Tag:

  $ git tag -a v1.4 -m "new version 1.4" // creating new tag 1.4 with mwssage new version 1.4

  $ git tag v1.4-lw // light weight tag, it only store checksum

  $ git show v1.4 // check what new in tag

  $ git push origin v1.4 // push tag to origin

  $ git push origin --tags // all tags

  $ git tag -d v1.4 // delete a tag in local rep

  $ git tag -d v1.4-lw // delete a light weight tag in local rep

  $ git tag --list // get list of tags

• Stashing:

  $ git stash show // show current stash difference

  $ git stash show stash@{1} // show stash difference

  $ git stash save "stash_name" // save stash

  $ git stash list // stash list

  $ git stash apply // it will give back current changes

  $ git stash apply stash@{2} // it will give back particular stash changes

• Change commit:

  $ git commit --amend -m "message" // to change curent commit message

  $ git commit --amend --no-edit // last commit modify

  $ git reset --hard HEAD~1 // delete current commit.

• check difference in a file before commit:

  $ git diff file_name // git diff .gitignore

• pull remote branch:

  $ git checkout --track origin/branch_name

• merge:

  $ git merge branch_name_to_be_merge // for merging be on branch which will be after merging example be on master

• rename a branch:

  $ git branch -m <new-branch-name>

  $ git branch -m <old-branch-name> <new-branch-name> // if on another branch

• delete or remove local branch:

  $ git branch -d <branch name> // be on any another branch

• delete or remove remote branch:

  $ git push --delete <remote_name> <branch_name> // be on any another branch

• Adding git in a project and config to github:

  $ git init
  $ touch README.md
  $ git add README.md
  $ git commit -m "first commit"
  $ git remote add origin remote_repository_link  // https://github.com/rahulkhatri19/repos_name.git
  $ git push -u origin main

• Push an existing Git repository

$ git remote rename origin old-origin  // renameing origin to remote origin, if you want to maintain more than one remote branch.
$ git remote add origin https://gitlab.com/rahulkhatri19/firebaseauth.git
$ git push -u origin --all
$ git push -u origin --tags

• Delete old remote url from local

$ git remote remove old-origin

• Adding existing project to github:

  $ git remote add origin remote_repository_link // https://github.com/rahulkhatri19/repos_name.git

  $ git push -u origin main

• removing/deleting folder/Directory from git remote:

  $ git rm -r folder_name // git rm -r app/.cxx

• removing/deleting file from git:

  $ git rm folder_name/file_name.extenshion // eg $ git rm .idea/file.txt

• removing / deleting local changes:

  $ git checkout -- file_name // eg $ git checkout -- app/src/main/java/com/project_name/MainActivity.java

• pull a tag code / get old code in new branch:

  $ git checkout -b newBranchName tagversion /// git checkout -b oldcode v1.2.1

• git check global url:

  $ ~/.git/config // to edit use $ nano

• check remote url or repository linked with which remote url push and pull both:

  $ git remote -v
  > origin  git@github.com:USERNAME/REPOSITORY.git (fetch)   
  > origin  git@github.com:USERNAME/REPOSITORY.git (push)

• Change your remote's URL from SSH to HTTPS:

  $ git remote set-url origin https://github.com/USERNAME/REPOSITORY.git

• Generating SSH key with RSA encryption:

  $ ssh-keygen -o -t rsa -b 4096 -C "email@example.com"

  Save path, if you want a specific path then enter it or leave blank for default.

  asked to override so Y.

  Enter passphrase : // Just to add extra security level

• Change user detail in particular project:

  Go to : .git -> config (text file) -> // .git folder and config file then type at bottom:

[user]
	email = your@email.com
	name = Rahul

• unable to update code from global to local machine:

  $ git pull . origin/branch_name

• change upstream branch:

  $ git branch --set-upstream-to origin/branch_name

• git update local branch from remote:

  $ git pull origin branch_name

• stop rebase at any stage:

  $ git rebase --abort

• start interactive rebase:

  $ git rebase -i HEAD~2 // 2 -> last two commit, HEAD ~ sign then number where number is last commit number.

  Now a editor is there, to edit text editor press i -> to be in insert mode save changes -> esc : wq

  // For changing name of author replace 'pick' with 'e' to edit desired commit.

  To change author name ->

  $ git commit --amend --author="Rahul Khatri <khatri.rahul019@gmail.com>"
  $ git rebase --continue
  $ git push --force origin master

Note: Whithout force push chnages will not be effect in server.

• Retrive deleted file/folder if commit not done:

  $ git checkout -- file_path/folder_path

  If error came in retrive deleted file/folder than need to index first :

$ git reset -- file_path/folder_path
$ git checkout -- file_path/folder_path

• Rebase update code

$ git pull --rebase origin branch_name

• Find out SHA Key

$ .\gradlew signingReport

For Android: Just go to Your project in CMD and try above comand.
// ...(Project Path) AndroidStudioProjects\Project_name> .\gradlew signingReport

For Flutter: Just Go to project and inside android folder open CMD.
// ...(Project Path) FlutterProjects\Project_name\android> .\gradlew signingReport