git config --global user.name "Your Name"
git config --global user.email "your_email@domain.com"

# create a new directory
mkdir hello

# go into the new directory
cd hello

# initialize git for the current directory
git init

# create a new file
echo 'My first file' > first.txt

# let's start tracking this file
git add first.txt

# stage new and modified files 
git add .

# stage new, modified and deleted files
git add -a

# add all files that have the extension .txt (new, modified and deleted)
git add "*.txt"

# get the current status on the current git branch
git status

# get the current status on the current git branch (short description)
git status -s

# let's commit our changes to the master branch
git commit -m "Our first commit"

# append commit to the previous commit
git commit --amend

# append commit to the previous commit, but don't edit the message
git commit --amend --no-edit

# see which commits are on this branch
git log

# show reference log, useful for reseting to the specific "event"
git reflog

# let's add a remote repository
git remote add origin https://github.com/XXX/XXX.git

# show all remote repositories (-v is used to display more verbose version)
git remote -v

# remove the remote repository
git remote remove origin

# let's push our first commit to the remote repository on a branch master
git push origin master

# you can set remote tracking branch to the current branch
# and when you push for the next time you can just do a simple `git push`
git push -u origin master

# pull some new commits from our remote branch,
# this will integrate all commits into your current working directory
# you can do a simple `git pull`, if you already set tracking branch 
git pull origin master

# get new data from the remote repository,
# but don't integrate it into our working repository
git fetch origin

# let's create a new branch
git branch new_branch

# show all branches; local and remote
git branch -a

# delete the local branch
git branch -d new_branch

# delete the local and remote branch
git branch -d -f new_branch

# rename the branch from old_branch to new_branch
git branch -M old_branch/new_branch

# let's switch to the new branch
git checkout new_branch

# let's incorporate changes from new_branch 
# into current branch master (new commit)
# git pull command preform
# git merge automatically
git merge new_branch

# let's incorporate changes from new_branch 
# into current branch master
git rebase new_branch

# you can see the difference between
# them bellow

# create package.json file which is used by NPM
npm init

# create package.json with default values
npm init -y

# we will install npm package, but we won't add it to package.json file
npm install

# shorter version of npm install
npm i

# install package and save it to dependencies
npm install --save

# install package and save it to development dependencies
npm install --save-dev

# run scripts that are defined in package.json
npm run

# see which packages are outdated in your package.json
npm outdated