git ^push with ssh key code example
Example 1: terminal git add ssh key
$ ssh-add ~/.ssh/id_rsa
Example 2: git push specific ssh key
GIT_SSH_COMMAND='ssh -i ~/.ssh/your_private_key' git submodule update --init
$ ssh-add ~/.ssh/id_rsa
GIT_SSH_COMMAND='ssh -i ~/.ssh/your_private_key' git submodule update --init