$ ssh-add -h ssh-add: illegal option -- h Usage: ssh-add [options] Options: -l List fingerprints of all identities. -L List public key parameters of all identities. -d Delete identity. -D Delete all identities. -x Lock agent. -x Unlock agent. -t life Set lifetime (in seconds) when adding Unlock agent ist -X and not -x . Regards CD -- "oppression breeds violence" PGP fingerprint: 4950 8576 778F DEDF 85D1 C04D 586F 2C45 E714 E13A