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ssh.adoc

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ssh.variant

By default, Git determines the command line arguments to use based on the basename of the configured SSH command (configured using the environment variable GIT_SSH or GIT_SSH_COMMAND or the config setting core.sshCommand). If the basename is unrecognized, Git will attempt to detect support of OpenSSH options by first invoking the configured SSH command with the -G (print configuration) option and will subsequently use OpenSSH options (if that is successful) or no options besides the host and remote command (if it fails).

The config variable ssh.variant can be set to override this detection. Valid values are ssh (to use OpenSSH options), plink, putty, tortoiseplink, simple (no options except the host and remote command). The default auto-detection can be explicitly requested using the value auto. Any other value is treated as ssh. This setting can also be overridden via the environment variable GIT_SSH_VARIANT.

The current command-line parameters used for each variant are as follows:

  • ssh - [-p port] [-4] [-6] [-o option] [username@]host command

  • simple - [username@]host command

  • plink or putty - [-P port] [-4] [-6] [username@]host command

  • tortoiseplink - [-P port] [-4] [-6] -batch [username@]host command

Except for the simple variant, command-line parameters are likely to change as git gains new features.