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+SSH-ADD(1)                  General Commands Manual                 SSH-ADD(1)
+
+NAME
+     ssh-add M-bM-^@M-^S adds private key identities to the authentication agent
+
+SYNOPSIS
+     ssh-add [-cDdkLlqXx] [-E fingerprint_hash] [-t life] [file ...]
+     ssh-add -s pkcs11
+     ssh-add -e pkcs11
+
+DESCRIPTION
+     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/id_ed25519.
+     After loading a private key, ssh-add will try to load corresponding
+     certificate information from the filename obtained by appending -cert.pub
+     to the name of the private key file.  Alternative file names can be given
+     on the command 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
+     environment 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 ssh-askpass(1).  Successful confirmation is signaled by a zero
+             exit status from ssh-askpass(1), 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 and their corresponding certificates will be
+             removed.  Otherwise, the argument list will be interpreted as a
+             list of paths to public key files to specify keys and
+             certificates to be removed from the agent.  If no public key is
+             found at a given path, ssh-add will append .pub and retry.
+
+     -E fingerprint_hash
+             Specifies the hash algorithm used when displaying key
+             fingerprints.  Valid options are: M-bM-^@M-^\md5M-bM-^@M-^] and M-bM-^@M-^\sha256M-bM-^@M-^].  The
+             default is M-bM-^@M-^\sha256M-bM-^@M-^].
+
+     -e pkcs11
+             Remove keys provided by the PKCS#11 shared library pkcs11.
+
+     -k      When loading keys into or deleting keys from the agent, process
+             plain private keys only and skip certificates.
+
+     -L      Lists public key parameters of all identities currently
+             represented by the agent.
+
+     -l      Lists fingerprints of all identities currently represented by the
+             agent.
+
+     -q      Be quiet after a successful operation.
+
+     -s pkcs11
+             Add keys provided by the PKCS#11 shared library 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
+             specified in sshd_config(5).
+
+     -X      Unlock the agent.
+
+     -x      Lock the agent with a password.
+
+ENVIRONMENT
+     DISPLAY and SSH_ASKPASS
+             If ssh-add needs a passphrase, it will read the passphrase from
+             the current terminal if it was run from a terminal.  If ssh-add
+             does not have a terminal associated with it but DISPLAY and
+             SSH_ASKPASS are set, it will execute the program specified by
+             SSH_ASKPASS (by default M-bM-^@M-^\ssh-askpassM-bM-^@M-^]) 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.)
+
+     SSH_AUTH_SOCK
+             Identifies the path of a UNIX-domain socket used to communicate
+             with the agent.
+
+FILES
+     ~/.ssh/id_dsa
+             Contains the DSA authentication identity of the user.
+
+     ~/.ssh/id_ecdsa
+             Contains the ECDSA authentication identity of the user.
+
+     ~/.ssh/id_ed25519
+             Contains the Ed25519 authentication identity of the user.
+
+     ~/.ssh/id_rsa
+             Contains the 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
+     Exit status is 0 on success, 1 if the specified command fails, and 2 if
+     ssh-add is unable to contact the authentication agent.
+
+SEE ALSO
+     ssh(1), ssh-agent(1), ssh-askpass(1), ssh-keygen(1), sshd(8)
+
+AUTHORS
+     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
+     created OpenSSH.  Markus Friedl contributed the support for SSH protocol
+     versions 1.5 and 2.0.
+
+OpenBSD 6.4                     August 29, 2017                    OpenBSD 6.4