-.It Fl c
-Indicates that added identities should be subject to confirmation before
-being used for authentication.
-Confirmation is performed by the
-.Ev SSH_ASKPASS
-program mentioned below.
-Successful confirmation is signaled by a zero exit status from the
-.Ev SSH_ASKPASS
-program, rather than text entered into the requester.
-.It Fl D
-Deletes all identities from the agent.
-.It Fl d
-Instead of adding identities, removes identities from the agent.
-If
-.Nm
-has been run without arguments, the keys for the default identities will
-be removed.
-Otherwise, the argument list will be interpreted as a list of paths to
-public key files and matching keys will be removed from the agent.
-If no public key is found at a given path,
-.Nm
-will append
-.Pa .pub
-and retry.
-.It Fl e Ar reader
-Remove key in smartcard
-.Ar reader .
-.It Fl L
-Lists public key parameters of all identities currently represented
-by the agent.