cpo — Apollo

10.0;cpo (create_process_only) *DM*, revision 1.0, 88/03/17
cpo (create_process_only) create process without pads or windows
usage:  cpo [-n name [-w] pathname [args ...]]



DESCRIPTION
     The cpo command creates only a process, without associated pads or
     windows.  The three standard I/O streams are directed to /dev/null.  If
     this command appears in the node's DM boot startup script
     `node_data/startup, the system assigns the new process the subject
     identifier (SID) user.server.none.local_node, and the created process
     continues to run regardless of whether anyone is logged in. This is
     desirable for utilities like the prsvr (print_server) and netman, and
     means that cpo is identical to cps in this context.

     If cpo is issued in any other startup script or from the keyboard, the
     SID of the new process is derived from whatever process invokes cpo, and
     the created process terminates at logout.

ARGUMENTS
     pathname (required)
                    Specify the file to be executed by the new process.

     args... (optional)
                    Specify any arguments to be passed to the program
                    pathname.  If any of these arguments contain explicit
                    blanks, enclose those arguments in quotation marks.

                    Default if omitted:  no arguments passed

OPTIONS
     -n name        Assign process name name.  If you omit this option, the
                    process is not named.

     -w             Invoke "wait" mode. If you specify this option, the DM
                    suspends its activities until the newly created process
                    terminates. As long as the process runs, the DM does not
                    respond to keyboard or other input. Use this option with
                    caution.  If the newly created process does not terminate,
                    the DM appears to be hung.  In addition, processes created
                    using -w cannot make any DM requests (via pad_$ requests
                    or DM commands) because the DM is suspended and will not
                    respond.

EXAMPLE
     Run the alarm_server in a background process.

         Command: cpo /sys/alarm/alarm_server -disk 98 -bell1

SEE ALSO
     More information is available.  Type the following at an Aegis shell
     prompt:

     help cp        For details about creating processes with windows and pads

     help cps       For details about creating server processes

     help sigp      For details about stopping background processes
Museum
