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         ssh-add -s pkcs11
         ssh-add -e pkcs11
         ssh-add -n [-T token]


         ssh-add adds private key identities to the authentication agent,
         ssh-agent(1).  When run without arguments, it adds the files
         ~/.ssh/id_rsa, ~/.ssh/id_dsa, ~/.ssh/id_ecdsa and ~/.ssh/identity.  After
         loading a private key, ssh-add will try to load corresponding certificate
         information from the filename obtained by appending to the name
         of the private key file.  Alternative file names can be given on the com-
         mand line.
         If any file requires a passphrase, ssh-add asks for the passphrase from
         the user.  The passphrase is read from the user's tty.  ssh-add retries
         the last passphrase if multiple identity files are given.
         The authentication agent must be running and the SSH_AUTH_SOCK environ-
         ment variable must contain the name of its socket for ssh-add to work.
         The options are as follows:
         -c      Indicates that added identities should be subject to confirmation
                 before being used for authentication.  Confirmation is performed
                 by the SSH_ASKPASS program mentioned below.  Successful confirma-
                 tion is signaled by a zero exit status from the SSH_ASKPASS pro-
                 gram, rather than text entered into the requester.
         -D      Deletes all identities from the agent.
         -d      Instead of adding identities, removes identities from the agent.
                 If ssh-add 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, ssh-add will append .pub and retry.
         -e pkcs11
                 Remove key provided by pkcs11.
         -L      Lists public key parameters of all identities currently repre-
                 sented by the agent.
         -l      Lists fingerprints of all identities currently represented by the
         -s pkcs11
                 Add key provided by pkcs11.
         -t life
                 Set a maximum lifetime when adding identities to an agent.  The
                 lifetime may be specified in seconds or in a time format speci-
                 SSH_ASKPASS are set, it will execute the program specified by
                 SSH_ASKPASS and open an X11 window to read the passphrase.  This
                 is particularly useful when calling ssh-add from a .xsession or
                 related script.  (Note that on some machines it may be necessary
                 to redirect the input from /dev/null to make this work.)
                 Identifies the path of a unix-domain socket used to communicate
                 with the agent.
                 The reseeding of the OpenSSL random generator is usually done
                 from /dev/urandom.  If the SSH_USE_STRONG_RNG environment vari-
                 able is set to value other than 0 the OpenSSL random generator is
                 reseeded from /dev/random.  The number of bytes read is defined
                 by the SSH_USE_STRONG_RNG value.  Minimum is 14 bytes.  This set-
                 ting is not recommended on the computers without the hardware
                 random generator because insufficient entropy causes the connec-
                 tion to be blocked until enough entropy is available.


                 Contains the protocol version 1 RSA authentication identity of
                 the user.
                 Contains the protocol version 2 DSA authentication identity of
                 the user.
                 Contains the protocol version 2 ECDSA authentication identity of
                 the user.
                 Contains the protocol version 2 RSA authentication identity of
                 the user.
         Identity files should not be readable by anyone but the user.  Note that
         ssh-add ignores identity files if they are accessible by others.


         Exit status is 0 on success, 1 if the specified command fails, and 2 if
         ssh-add is unable to contact the authentication agent.


         ssh(1), ssh-agent(1), ssh-keygen(1), sshd(8)


         OpenSSH is a derivative of the original and free ssh 1.2.12 release by
         Tatu Ylonen.  Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo
         de Raadt and Dug Song removed many bugs, re-added newer features and cre-
         ated OpenSSH.  Markus Friedl contributed the support for SSH protocol

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