were found but none were acceptable. `a' may be used in place of
`update-authorized_keys'.
.TP
-.B gen-subkey KEYID
-Generate an authentication subkey. For the primary key with the
-specified key ID, generate a subkey with "authentication" capability
-that can be used for monkeysphere transactions. An expiration length
-can be specified with the `-e' or `--expire' option (prompt
-otherwise). `g' may be used in place of `gen-subkey'.
+.B gen-subkey [KEYID]
+Generate an authentication subkey for a private key in your GnuPG
+keyring. For the primary key with the specified key ID, generate a
+subkey with "authentication" capability that can be used for
+monkeysphere transactions. An expiration length can be specified with
+the `-e' or `--expire' option (prompt otherwise). If no key ID is
+specified, but only one key exists in the secret keyring, that key
+will be used. `g' may be used in place of `gen-subkey'.
.TP
.B help
Output a brief usage summary. `h' or `?' may be used in place of
subcommands:
update-known_hosts (k) [HOST]... update known_hosts file
update-authorized_keys (a) update authorized_keys file
- gen-subkey (g) KEYID generate an 'a' capable subkey
+ gen-subkey (g) [KEYID] generate an authentication subkey
--length (-l) BITS key length in bits (2048)
--expire (-e) EXPIRE date to expire
help (h,?) this help
gen_subkey "$@"
;;
- 'help'|'h'|'?')
+ '--help'|'help'|'-h'|'h'|'?')
usage
;;