Git stuffs that I sometime forgot.


1. SSH Authentication

Source: Official docs

Generating ssh public and private keys (and hit enter all the way).

ssh-keygen -t ed25519 -C "your_email@example.com"

Activate agents, get the public key, and paste that to Github SSH (Setting → SSH and GPG keys).

eval "$(ssh-agent -s)"
cat ~/.ssh/id_25519.pub


2. Push changes from one branch to another branch

A neat little cool trick that my co-worker shown me.

git push <remote> <branch with new changes>:<branch you are pushing to>

What it mean is that, push to <remote>, changes of <branch with new changes>, to the <branch you are pushing to>. A neat thing is that, Github will create that new branch you are pushing to if you don’t have it. Handy for pushing changes from dev repo to prod.


3. Oh yea i forgot that moments

Do you ever commit then found out you miss some file in the commit, or some small changes?

git commit --amend --no-edit

This would include new added changes to the latest commit.


4. Change branch name (local and remote)

Change local branch name.

git switch <old_name>
git branch -m <new_name>

Push as new branch

git push origin -u <new_name>

Delete upstream old branch

git push origin --delete <old_name>