All my slides and material that I use in class can be found on my GitHub site.

# Update the package list, update all packages and remove any packages that are no longer required on your Raspberry Pi
sudo apt-get update -y && sudo apt-get dist-upgrade -y && sudo apt-get autoremove -y

Creating a repository

  • First create a new repository:

echo "# sensehat" >> README.md
git init
git add README.md
git commit -m "first commit"
git remote add origin git@github.com:tarikgit/sensehat.git
git push -u origin master

  • Tell GitHub who you are:

git config --global user.email "you@example.com"
git config --global user.name "Your Name"

  • Delete saved password on your computer

Tutorial for deleting your credentials via command line.

  • Creating a personal access token

Tutorial for creating a token in GitHub.

  • Generate a new SSH key

ssh-keygen -t rsa -b 4096 -C "your_email@example.com"

Press Enter to set a default file location. When asked to Enter passphrase …​, provide a safe password.

  • Add new SSH key to your GitHub account

    • Copy the SSH key to your clipboard

Open id_rsa.pub:

cat ../.ssh/id_rsa.pub
# assuming that the current folder is /home/pi/sensehat

Copy the key and paste it into GitHub

  • Push your first commit

git commit -m "initial commit"
git push origin master

  • Putting all the commands into a sequence:

git add *
git commit  -m "description of commit"
git push

  • If your Personal Access Token is expired follow this New personal access token.

  • If your password has expired, here is how you can update the cached password on Mac OS. A username and password prompt will appear with your next git action (push, clone, etc.).

git config --global credential.helper osxkeychain

  • Finally, here is a way to update all git repositories on a directory:

for i in */.git; do cd $(dirname $i); git pull; cd ..; done

Summary

  • Get changes on GitHub back to your computer

git pull origin master

  • Check all new commits

git log

  • Switch branches back to the master branch

git checkout master

  • Commit new changes

git add *
git commit -m "write a short comment here"
git push

Sources: