Most users don't have plink installed by default, and it is not mentioned in any previous steps. Would speed up troubleshooting if it is mentioned as a requirement
`git@github.com:USERNAME/repository`. Any authenticated commands will be authorized by your YubiKey.
`git@github.com:USERNAME/repository`. Any authenticated commands will be authorized by your YubiKey.
**Note:** If you encounter the error `gpg: signing failed: No secret key`, run `gpg --card-status` with your YubiKey plugged in and try the git command again.
**Note:** If you encounter the error `gpg: signing failed: No secret key`, run `gpg --card-status` with your YubiKey plugged in and try the git command again. If you don't have it already, install [plink](https://linux.die.net/man/1/plink) using `sudo apt-get install plink`