RSTART(1)

RSTART(1)

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NAME
       rstart - a sample implementation of a Remote Start client

SYNOPSIS
       rstart  [-c context] [-g] [-l username] [-v] hostname com-
       mand args ...

DESCRIPTION
       Rstart is a simple implementation of a Remote Start client
       as  defined in "A Flexible Remote Execution Protocol Based
       on rsh".  It uses rsh as its underlying  remote  execution
       mechanism.

OPTIONS
       -c context
               This  option  specifies  the  context in which the
               command is to be run.  A context specifies a  gen-
               eral environment the program is to be run in.  The
               details of this environment are host-specific; the
               intent  is  that  the client need not know how the
               environment must be configured.  If  omitted,  the
               context  defaults  to  X.  This should be suitable
               for running X programs from the host's  "usual"  X
               installation.

       -g      Interprets  command  as a generic command, as dis-
               cussed in the protocol document.  This is intended
               to allow common applications to be invoked without
               knowing what they are called on the remote system.
               Currently,  the  only generic commands defined are
               Terminal,  LoadMonitor,  ListContexts,  and  List-
               GenericCommands.

       -l username
               This  option  is  passed to the underlying rsh; it
               requests that the command be run as the  specified
               user.

       -v      This option requests that rstart be verbose in its
               operation.  Without this option,  rstart  discards
               output   from  the  remote's  rstart  helper,  and
               directs the rstart helper to  detach  the  program
               from  the  rsh  connection used to start it.  With
               this option, responses from the  helper  are  dis-
               played  and  the resulting program is not detached
               from the connection.

NOTES
       This is a trivial implementation.  Far more  sophisticated
       implementations are possible and should be developed.

       Error  handling is nonexistant.  Without -v, error reports
       from the remote are discarded silently.   With  -v,  error
       reports are displayed.

       The $DISPLAY environment variable is passed.  If it starts
       with a colon, the local hostname is prepended.  The  local
       domain  name should be appended to unqualified host names,
       but isn't.

       The  $SESSION_MANAGER  environment  variable   should   be
       passed, but isn't.

       X11  authority  information is passed for the current dis-
       play.

       ICE authority information should be passed, but isn't.  It
       isn't  completely  clear how rstart should select what ICE
       authority information to pass.

       Even without -v, the sample rstart  helper  will  leave  a
       shell waiting for the program to complete.  This causes no
       real harm and consumes relatively few resources, but if it
       is  undesirable it can be avoided by explicitly specifying
       the "exec" command to the shell, eg

            rstart somehost exec xterm

       This is obviously dependent  on  the  command  interpreter
       being  used  on  the remote system; the example given will
       work for the Bourne and C shells.

SEE ALSO
       rstartd(1) rsh(1) A Flexible Remote Execution Protocol 
       Based on rsh

AUTHOR
       Jordan Brown, Quarterdeck Office Systems

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