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NAME

       rstart - a sample implementation of a Remote Start client

SYNOPSIS

       rstart [-c context] [-g] [-l username] [-v] hostname command 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 general 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 discussed 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
               ListGenericCommands.

       -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  displayed  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  nonexistent.   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 display.

       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