requirements

Configure key

check if the key (id_rsa.pub) already exists (https://docs.github.com/en/free-pro-team@latest/github/authenticating-to-github/checking-for-existing-ssh-keys)

ls -al ~/.ssh

if not, generate a new key (https://docs.github.com/en/free-pro-team@latest/github/authenticating-to-github/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent) dont add passwords when asked

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

check & do the ssh-add:

eval "$(ssh-agent -s)" ssh-add ~/.ssh/id_rsa

sudo apt-get install xclip xclip -sel clip < ~/.ssh/id_pub.rsa