Show GPG key fingerprint without importing the key

Question

I need to add GPG key information to a (Puppet) config, but I want to avoid having to import the key into my keyring and then delete it again, just to get the key ID/fingerprint. How do I get that information without actually importing the key?

Answer 1

In older GPG versions you had to run the command with the option --with-fingerprint to have it show the fingerprint of a key file:

gpg --with-fingerprint foo.asc

In newer versions (2.2 and above, I believe) the fingerprint will be shown by default and will not be shown when using that option, so the parameter must be omitted:

gpg foo.asc