git.essential.md

Configuration

git config user.name "My Name"
git config user.email "myemail@domain.com"

Initialize a git repository

git init

Add all files to be commited

git add .

Add one file to be commited

git add -- name_of_file.ext

Add all files inside one folder to be commited

git add -- name_of_folder

Commit

git commit -m 'Commit description'

Update local repository from a remote (origin = remote name, master = branch name)

git pull origin master

Send commit to a remote repository

git push origin master

Clone a remote repository

git clone git@host:user/repository.git

ex: git clone git@github.com:dtelaroli/docker-rails.git

Show origin details (origin = remote name)

git remote show origin

Create a branch

git checkout branch_to_be_copied
git checkout -b branch_name

Merge branches

git checkout branch_to_receive_merge
git merge branch_to_be_merged

Undo all changes

git checkout .

Undo changes in specific file

git checkout -- file_name.ext

Undo commit definetelly

git reset --hard hash_to_commit_or_branch

Finding the guilty

git blame filename.ext

Checking steps

git reflog

Checking commits

git log

Criando um novo repositório por linha de comando

touch README.md

git init
git add README.md
git commit -m "first commit"
git remote add origin https://libregit.org/kretcheu/english.git
git push -u origin master

Realizando push para um repositório existente por linha de comando

git remote add origin https://libregit.org/kretcheu/english.git
git push -u origin master

If you want to remove the file from the Git repository and the filesystem

git rm file1.txt
git commit -m "remove file1.txt"
git push origin master

But if you want to remove the file only from the Git repository and not remove it from the filesystem

git rm --cached file1.txt
git commit -m "remove file1.txt"
git push origin master

Incluindo ou removendo repositório remoto

git remote add apelido https://github.com/kretcheu/download.git
git remote remove apelido

git remote rename apelido novo-apelido

git push apelido

Incluindo repositório para acesso ssh

git remote add debian git@salsa.debian.org:kretcheu-guest/tutoriais.git

Incluido vários repositórios num mesmo remote

git remote add all origin-host:path/proj.git
git remote set-url --add all nodester-host:path/proj.git
git remote set-url --add all duostack-host:path/proj.git

Vendo as diferenças

git diff

depois do add

git diff --staged
git diff --cached