Git

• Git is used to maintain a local repository and can be uploaded to sites like github.
• git clone clones the repository.
• git pull pulls from repository.
• git add . adds . to changes
• git checkout . can undo actions like deletion if they are not committed.
• git commit to commit changes
• git push push to a remote repository
• Authenticate with github using ssh keys or username and tokens which can be set up in github interface.
• README.md is auto displayed on github.

SSH Keys

• Below ~ is used to access the users account that will be ssh into.
• Used to connect remotely without password
• Make ssh keys with ssh-keygen -t rsa -C "string"
• public key is saved in ~/.ssh/id_rsa.pub do not move or share private key.
• To use passwordless ssh add the id_rsa.pub to ~/.ssh/authorized_keys
• Permissions may need to be altered for this to work
• chmod 700 ~/.ssh
• chmod 600 ~./.ssh/authorized_keys
• chown -R user:user ~/.ssh
• Disable root login by adding PermitRootLogin no to /etc/ssh/sshd_config

Reflection

• Github can be used to transfer files and maintain version across scripts.
• Keyless ssh is useful for quickly accessing other devices as well as uploading to github.
• Keyless ssh also allows for easy remote control of devices using scripts.