How to encrypt and sign with different keys

[Robert J. Hansen]

> I am struggling with GPG command line that will encrypt file with key A
> and sign it with key B. Any help would be appreciated. Also, is there a

ID-A is the certificate ID for A, ID-B is the certificate ID for B.

gpg --recipient ID-A --local-user B --encrypt --sign filename.txt

> way to provide the password for the signing key in the command line?

Please don't.  Doing things this way sort of destroys the purpose of a
passphrase.  Remove the passphrase from the certificate instead.