git using different ssh key

[aizu]

First, generate new keygen

# ssh-keygen

Note: ensure id_rsa filename is a custom name, not default "id_rsa".
Example: ~/.ssh/id_rsa_custom_key

Then, add the custom key in github/git source

Then, clone/pull using command below using custom key

GIT_SSH_COMMAND='ssh -i ~/.ssh/id_rsa_custom_key' git clone [email protected]:chromium/chromium.git

Ref: https://ma.ttias.be/specify-a-specific-ssh-private-key-for-git-pull-git-clone/

[aizu]

File: ~/.ssh/config

Host github.com
    IdentityFile ~/.ssh/id_rsa_custom_key
    IdentitiesOnly yes

Create this file in the server, so it always execute this by default.