Excuting unix program.

Question

Hi.
I just want excute java.exe in bw unix without using function 'SXPG_CALL_SYSTEM'.
cause that function has limit number of command string.
I think I can use this command but somehow it returns null.
don't know what is problem and actually not sure usage of  CALL 'SYSTEM' function.
anyone can fix this problem?
  DATA: INFO_SGL(700) TYPE C OCCURS 0 WITH HEADER LINE.
  data: COMMAND_STR type string.
  data: CODE_number_500 type string.
CODE_number_500 = '43423424324........'.
  concatenate '/opt/java1.3/bin/java  -jar'
              ' test_v2.jar'
              CODE_number_500
              INTO COMMAND_STR.
  CALL 'SYSTEM' ID 'COMMAND' FIELD COMMAND_STR ID 'TAB' FIELD INFO_SGL-SYS.
  loop at info_sgl.
    return_value = info_sgl.
  endloop.
thank you.

Answer 1

Hi,
Length of the parameter COMMANDNAME is 18.
Hence 'CODE_number_500' should work.
There must be some other problem.
Go thru following documentation.
Hope it helps.
FU SXPG_CALL_SYSTEM
     Execute an External Command
Functionality
     SXPG_CALL_SYSTEM: Execute External Command (Express Method)
     Using this function module, you can:
     o   Check a user's authorization to execute a command
     o   Execute the command
     To determine the system on which the command should be executed, the
     function module uses by default the current host system and the current
     operating system type of the user.
     As the function module is RFC-capable, you can use the RFC interface
     (Remote Function Call Interface) to run the function module in a
     different SAP application server. The external command is then
     accordingly executed in the host system of the other SAP server.
     SXPG_CALL_SYSTEM uses the following rules to determine which variant of
     a command is used for the execution:
     o   If a command with the same operating system type as the one in the
         sytem field SY-OPSYS exists, this definition is used for the
         execution of the command.
     o   If the first check fails, the syntax group for SY-OPSYS is
         determined. A syntax group is an SAP construct that groups operating
         systems that use the same syntax for commands and filenames. If a
         command whose operating system type matches the determined syntax
         group, this definition of the command is used.
     o   If no matching definition is found for the syntax group, the
         function module searches for a definition with the operating system
         type ANYOS (executable in all supported operating systems). This
         definition is then used, if found.
     o   Otherwise, the exception COMMAND_NOT_FOUND is triggered.
Use
   Syntax:
     CALL FUNCTION SXPG_CALL_SYSTEM
          IMPORTING
             COMMANDNAME   = <SAP command name>   DEFAULT '*'
             ADDITIONAL_PARAMETERS    = <Argument string> default <space>
          EXPORTING
             STATUS        = <Exit status of command>
           TABLES
             EXEC_PROTOCOL = <Log>   In structure BTCXPM.  Can
     contain STDOUT, STDERR
           EXCEPTIONS
             NO_PERMISSION  Command rejected by User exit auth.
                            check
             COMMAND_NOT_FOUND   Command not defined in SAP database
             PARAMETERS_TOO_LONG   Complete parameter string exceeds
     128 characters
             SECURITY_RISK  Security check failed
             WRONG_CHECK_CALL_INTERFACE  Problem with function
                                          module for additional security
     check
             PROGRAM_START_ERROR  Error while starting program
             PROGRAM_TERMINATION_ERROR  Error while requesting final
                                        status of program
             X_ERROR  Reserved
             PARAMETER_EXPECTED  Required parameter not specified
             TOO_MANY_PARAMETERS  User arguments not allowed by
                                  supplied in call
             ILLEGAL_COMMAND  Command not legitimately defined
             OTHERS
Parameters
     COMMANDNAME
     ADDITIONAL_PARAMETERS
     STATUS
     EXITCODE
     EXEC_PROTOCOL
Exceptions
     NO_PERMISSION
     COMMAND_NOT_FOUND
     PARAMETERS_TOO_LONG
     SECURITY_RISK
     WRONG_CHECK_CALL_INTERFACE
     PROGRAM_START_ERROR
     PROGRAM_TERMINATION_ERROR
     X_ERROR
     PARAMETER_EXPECTED
     TOO_MANY_PARAMETERS
     ILLEGAL_COMMAND
Function Group
     SXPT
Regards,
Shashank