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Set up GitHub push with SSH keys

SSH keypair setup for GitHub (or GitHub/GitLab/BitBucket, etc, etc)

Create a repo.

Make sure there is at least one file in it (even just the README.md)

Generate a SSH key pair (private/public):

ssh-keygen -t rsa -C "[email protected]"

or even better:

ssh-keygen -t rsa -b 4096 -C "[email protected]"

It also possible to use ed25519. There are pros and cons, but personally I've had some issues and that is the reason I've chosen to stick to 4096 rsa for now.

Copy the contents of the public SSH key

macOS:

pbcopy < ~/.ssh/id_rsa.pub

GNU/Linux (requires the xclip package):

xclip -sel clip < ~/.ssh/id_rsa.pub

Windows Command Line:

type %userprofile%\.ssh\id_rsa.pub | clip

Git Bash on Windows / Windows PowerShell:

cat ~/.ssh/id_rsa.pub | clip

or ofcourse copy it via your favorite editor, cat, or whatever suits your needs :)

Copy the public SSH key to GitHub

Copy the contents of the to your SSH keys to your GitHub account settings (https://github.com/settings/keys).

Test the SSH key:

ssh -T [email protected]

Change directory into the local clone of your repository (if you're not already there) and run:

git remote set-url origin [email protected]:username/your-repository.git

If the repo is under an organization the command is slightly different:

git remote set-url origin [email protected]:organization/your-repo.git

Now try editing a file (try the README) and then do:

git add -A
git commit -am "Update README.md"
git push

Add the key to the ssh-agent

ssh-add ~/.ssh/id_rsa

Create a new repository on the command line

echo "# repo-name" >> README.md
git init
git add README.md
git commit -m "first commit"
git branch -M main
git remote add origin [email protected]:bagus-Arya/cuaca-backend.git
git push -u origin main

Push an existing repository from the command line

git remote add origin [email protected]:bagus-Arya/cuaca-backend.git
git branch -M main
git push -u origin main

You should not be asked for a username or password. If it works, your SSH key is correctly configured.

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