essential_commands.md

The 5 essential commands

**Yes**, you only need 5 commands!
`pull, status, add, commit, push`
or in other words (remember these!): ```bash $ git pull $ git status $ git add myFile.txt # example $ git commit -m "myMessage" # example $ git push ```

Pull the latest version of an existing branch

Pull the latest revision on branch add-2-numbers:

$ git pull origin add-2-numbers
# Already up to date

Verify its `status` with: ```bash $ git status ```

Modify a file

Modify and rename addTwoNumbers.m in the folder src/firstCommit as addTwoNumbers_myName:

$ cd src/firstCommit
$ mv addTwoNumbers.m addTwoNumbers_myName.m

Open the file using the `Visual Studio Code` editor (or any other editor) and correct the line ```Matlab c = a - b; ```

Add your file to the stage

First, check the repository status

$ git status
# uncommitted changes (displayed in red)

Now, add the file (bring it on stage) ```bash $ git add addTwoNumbers_myName.m $ git status # returns the same as before, generally in green (means staged) ```

**ADVANCED**: see your changes in the terminal ```bash $ git diff ``` exit with `q`

Add a commit message

$ git commit -m "Correcting formula for adding 2 numbers"
$ git status

Push your file to your fork

$ git push origin add-2-numbers

**ADVANCED**: see the log of all the commits (and your last one) in the terminal ```bash $ git log ``` exit by typing `q`

Do it yourself

• Modify and rename secondCommit/multiplyTwoNumbers_myName.m
• Push the file secondCommit/multiplyTwoNumbers_myName.m
• Don't forget to edit _myName

Commands: ```bash $ git checkout develop $ git pull origin develop $ git checkout -b multiply-2-numbers # make changes to file $ git add secondCommit/multiplyTwoNumbers_myName.m $ git commit -m "Corrected formula for multiplying 2 numbers" $ git status $ git push origin multiply-2-numbers $ git log # optional ```