CODE EXAMPLE FOR SHELL

Why github ask me username/password instead of SSH authentication?

/*
 * select Clone or Download and Use SSH
 * You will get a URL for the SSH protocol in the form git@github.com:<user>/<repo>.git
 * Then run the following command in your working tree to tell Git to use this URL instead of the current one
 */ 
git remote set-url origin git@github.com:<user>/<repo>.git