remsh(1C)                       TCP/IP 5.4.2                       remsh(1C)


NAME
       remsh, rsh - create a remote shell to execute a command

SYNOPSIS
       remsh host [ -l username ] [ -n ] [ command ]
       rsh   host [ -l username ] [ -n ] [ command ]

DESCRIPTION
       Use this command (remsh, which might be called rsh on your system) to
       connect with a remote host:

       host      specifies the name of the remote host.

       -l username
                 optionally specifies the login name to use on the remote
                 host. If you omit this parameter, the local username is
                 used on the remote host as well.

       -n        optionally specifies that input should be redirected to
                 /dev/null. If you omit this parameter, remsh copies its
                 standard input to the remote command.

       command   optionally specifies a batch command to execute on the
                 remote system. If you omit this parameter, rlogin(1C) is
                 executed on the remote system.

       If you use the optional command parameter, note these points:

        * You cannot supply an interactive command, such as vi. To execute
          an interactive command on the remote system, first log in to the
          remote system: use remsh(1C) with no command parameter, or
          rlogin(1C). Then type the interactive command's name.

        * Your startup file (.login or .profile) is not executed as it is
          with rlogin(1C).  (If you use the C shell, the .cshrc file is
          executed.)  Thus, any environment variables that are set in your
          startup file (for example: TZ, PATH) will not get set for command.
          The default path is /usr/bin.

       The remsh command copies its standard input to the remote command,
       the standard output of the remote command to its standard output, and
       the standard error of the remote command to its standard error.
       Interrupt, quit and terminate signals are passed to the remote
       command; remsh normally terminates when the remote command does.

       Hosts are specified in the file /etc/hosts.  For each host, one or
       more optional nicknames may be given.

       The /etc/hosts.equiv file, maintained by the system administrator,
       controls remote access at the system level.  The optional file
       .rhosts, in each user's directory, controls remote access at the user
       level. See hosts.equiv(4) for details.

       CAUTION:  If users from different systems listed in the



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remsh(1C)                       TCP/IP 5.4.2                       remsh(1C)


                 /etc/hosts.equiv file have the same user ID, they will have
                 access to each other's accounts.

       Unquoted shell metacharacters are interpreted on the local machine,
       whereas quoted metacharacters are interpreted on the remote machine.
       Thus, the command:

             remsh otherhost cat remotefile >> localfile

       appends the remote file remotefile to the local file localfile,
       whereas:

            remsh otherhost cat remotefile ">>" otherremotefile

       appends remotefile to otherremotefile.

FILES
       /etc/hosts, /etc/hosts.equiv

SEE ALSO
       rlogin(1C), rshd(1M), hosts.equiv(4M).
       on(1C) in ONC/NFS.

BUGS
       If you are using csh(1) and put an remsh in the background without
       redirecting its input away from the terminal, the command will block
       even if no reads are posted by the remote command. To avoid this
       problem, use the -n option to redirect unwanted input from remsh to
       /dev/null.

       Stop signals stop the local remsh process only.


























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