OpenSSH SSH client (remote login program)

ssh connects and logs into the specified hostname (with optional user name).  The user must prove his/her
identity to the remote machine using one of several methods depending on the protocol version used (see
below).

If command is specified, it is executed on the remote host instead of a login shell.

COMMENTS
      In a non-interactive shell, or an interactive shell in which the interactive_comments option to the shopt
      builtin is enabled (see SHELL BUILTIN COMMANDS below), a word beginning with # causes that word  and  all
      remaining  characters  on that line to be ignored.  An interactive shell without the interactive_comments
      option enabled does not allow comments.  The interactive_comments option is on by default in  interactive
      shells.