🔧Set git repository to created project.

Create repository

1. https://github.com/${userName}?tab=repositories
2. button: New
3. https://github.com/new put data to form & Create repository

Terminal operation

% cd ${your project}/
% echo "# Test" >> README.md
% git init
Initialized empty Git repository in /Users/${your git name}/git/${your repository name}.git/

% git add README.md
On branch main
No commits yet
Changes to be committed:
  (use "git rm --cached <file>..." to unstage)
	new file:   README.md

% git commit -m "first commit"
[main (root-commit) ....
.
.
.
1 file changed, 43 insertions(+)
create mode 100644 README.md

$ git branch -M main
$ git remote add origin https://github.com/${your git name}/${your repository name}.git

ssh-keygen -t rsa

% ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/${userName}/.ssh/id_rsa): 
Created directory '/Users/${userName}/.ssh'.
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /Users/${userName}/.ssh/id_rsa
Your public key has been saved in /Users/${userName}/.ssh/id_rsa.pub
The key fingerprint is:
SHA256:*
The key's randomart image is:
+---[RSA 3072]----+
.
.
+----[SHA256]-----+

Check id_rsa & id_rsa.pub

% cd /Users/${userName}/.ssh
% ls
id_rsa		id_rsa.pub

% cat /Users/${userName}/.ssh/id_rsa.pub

GitHub Settings

https://github.com/settings/ GitHub >Settings

https://github.com/settings/keys > SSH keys

Click "Add SSH Key" , then Authentication Key has generated.

Repush branch

% git push -u origin main
The authenticity of host 'github.com (20.27.177.113)' can't be established.
ED25519 key fingerprint is SHA256:*.
This key is not known by any other names
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added 'github.com' (ED25519) to the list of known hosts.

Check SSH

Before

% ssh -T git@github.com
The authenticity of host 'github.com (20.27.177.113)' can't be established.

After

% ssh -T git@github.com
Hi ${your git name}! You've successfully authenticated, but GitHub does not provide shell access.