qtcsh [ tcsh options | -ABLR ]

       Qtcsh  is an extension to the popular csh(1) derivative tcsh. It allows
       the transparent remote execution commands entered in  qtcsh  controlled
       via Univa Grid Engine.  Qtcsh can be used as interactive command inter-
       preter as well as for the processing of tcsh shell scripts.

       When invoked, qtcsh identifies which commands are to  be  run  remotely
       and  which  are  not. For this purpose the files <sge_root>/<cell>/com-
       mon/qtask and ~/.qtask are processed. Each line in these files  defines
       a command that is intended to be run remotely (see qtask(5) for a defi-
       nition of the file format). The .qtask file in the user's  home  direc-
       tory  contains  the user's remote task specification, while the file in
       the common directory is maintained by the administrator and  defines  a
       cluster-wide  default behavior.  The contents of the administrator sup-
       plied qtask(5) file are completely  overridden  in  case  there  is  an
       appropriate  entry  in  the  users qtask(5) file.  This is prevented in
       case an exclamation mark is prefixed to the command name in the  admin-
       istrators qtask file.

       Qtcsh  always  attempts  to  start  the  designated  tasks remotely via
       qrsh(1).  Exceptions are

       o  if the user enters such commands via a relative or absolute pathname
          instead  of  the  stand-alone  command  name  (see qtask(5) for more

       o  if the environment variable JOB_ID is set  and  thus  qtcsh  assumes
          that  execution  already happens remotely within a Univa Grid Engine
          job and thus executes tasks locally. This avoids unwanted recursions
          but can be overridden by the command-line option -R and the built-in
          command qrshmode -R (see corresponding descriptions below).

       o  if qtcsh cannot establish a connection of Univa Grid  Engine  during
          start-up. This allows to use qtcsh as login shell without the danger
          of being blocked when no Univa Grid Engine service is available.

       Qtcsh can operate in three different modes determining whether

       o  tasks are executed remotely.

       o  immediate or batch execution is requested.

       o  status output is verbose or only in case of any errors.

       These modes either can  be  controlled  by  the  command-line  switches
       described  below  during  qtcsh invocation or within an executing qtcsh
       via the built-in command qrshmode as described in section BUILT-IN COM-

              failure  of the scripts due to temporarily unavailable resources
              for particular tasks.

       -L     Switches off default behavior of remote execution  of  commands.
              Causes all commands to be executed locally even if they are con-
              tained in one of the qtask(5) files.

       -R     Enforces remote execution of commands even if JOB_ID is  set  as
              environment variable.

       This section only describes additional shell builtin commands which are
       not available in standard tcsh(1).

       qrshmode [-ANBILR]
              Without options, the current operational mode of qtcsh  is  dis-
              played. The options have the following effect:

              -A   switch to verbose output mode
              -N   switch to non-verbose output mode
              -B   switch to batch execution mode
              -I   switch to immediate execution mode
              -L   always execute commands locally
              -R   execute configured commands remotely

       SGE_ROOT       Specifies the location of the Univa Grid Engine standard
                      configuration files.

       SGE_CELL       If set, specifies the default Univa Grid Engine cell. To
                      address  a  Univa  Grid  Engine  cell qtcsh uses (in the
                      order of precedence):

                             The name of the cell specified in the environment
                             variable SGE_CELL, if it is set.

                             The name of the default cell, i.e. default.

                      If set, specifies that debug information should be writ-
                      ten to stderr. In addition the level of detail in  which
                      debug information is generated is defined.

                      If  set,  specifies the tcp port on which sge_qmaster(8)
                      is expected to listen for communication requests.   Most
                      installations will use a services map entry for the ser-
                      vice "sge_qmaster" instead to define that port.

       the University of California.  Therefore, the following  note  applies:
       This  product includes software developed by the University of Califor-
       nia, Berkeley and its contributors.

       See    sge_intro(1)     and     the     information     provided     in
       <sge_root>/3rd_party/qtcsh  for  a statement of further rights and per-

UGE 8.0.0                $Date: 2004/11/12 15:40:03 $                 QTCSH(1)

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