Mac OS X: Delete SSH Keys Using Terminal Command Line

You can delete SSH keys on Mac OS X using the ssh-keygen command line utility. The ssh-keygen utility can be used to generate, manage, and delete SSH keys.

Here’s the basic process to delete an SSH key:

1. Open the Terminal application.
2. Change to the directory where the SSH keys are stored by running the following command:

3. Use the ls command to list the files in the directory and find the file that corresponds to the SSH key you want to delete. The file name will typically be in the format id_rsa or id_ed25519, followed by a file extension, such as .pub.
4. Delete the private key file using the rm command:

5. If there is a corresponding public key file, delete it as well:

Note that you should only delete the files that correspond to the SSH key you want to delete. If you accidentally delete the wrong files, you will not be able to log in to remote servers using that key.

After you have deleted the SSH key, you may need to remove it from your ~/.ssh/authorized_keys file on any remote servers where it was previously added. You can do this by logging into each server and editing the authorized_keys file with a text editor such as nano.