HP 3000 Manuals

New MPE XL System Features [ Introduction to MPE XL for MPE V System Administrators ] MPE/iX 5.0 Documentation


Introduction to MPE XL for MPE V System Administrators

New MPE XL System Features 

The following three tables list new MPE XL capabilities, utilities, and
commands.

New MPE XL Capabilities 

Table 1-1  lists capabilities that are new to MPE XL.

          Table 1-1.  New MPE XL Capabilities 

-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
|    CAPABILITY     |                  FUNCTION                   |         REFERENCE         |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Access Port (AP)  | A Channel I/O (CIO) port used to connect    | System Startup,           |
|                   | local and remote System Consoles to the     | Configuration and         |
|                   | host computer.                              | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Access Port       | A set of commands executed from the local   | System Startup,           |
| commands          | or remote System Console; used to control   | Configuration and         |
|                   | the Access Port.                            | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------

          Table 1-1.  New MPE XL Capabilities (cont.) 

-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
|    CAPABILITY     |                  FUNCTION                   |         REFERENCE         |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Autoboot          | When present, allows Autoboot to start the  | System Startup,           |
| file/Autoexec     | system automatically during system          | Configuration and         |
| file              | installation, without pausing at the ISL    | Shutdown Reference Manual |
|                   | prompt.                                     | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Autoboot flag     | When set on, and with autoexec file         | System Startup,           |
|                   | present, automatically restarts the system  | Configuration and         |
|                   | after a system reset.                       | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Autoinstall       | When run, automatically creates system      | System Startup,           |
| program           | account structure during system             | Configuration and         |
|                   | installation.                               | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Boot path         | One or more I/O paths that specify the      | System Startup,           |
|                   | device(s) on which system boot files are    | Configuration and         |
|                   | stored.                                     | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Boot path,        | Specifies a tape drive; when it is          | System Startup,           |
| alternate         | specified, the system boots from the boot   | Configuration and         |
|                   | tape.                                       | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Boot path,        | Specifies the System Console hardware path. | System Startup,           |
| console           |                                             | Configuration and         |
|                   |                                             | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| boot path,        | Specifies the System Disk; when it is       | System Startup,           |
| primary           | specified, the system boots from the System | Configuration and         |
|                   | Disk.                                       | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Command Files     | Similar to UDC's, but are not cataloged;    | Security and Account      |
|                   | contain only one command definition; are    | Structure (32650-90041);  |
|                   | easier to modify, but do not accept the     | MPE XL Commands Reference |
|                   | recursion.                                  | Manual (32650-90003)      |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Command line      | Permits command lines to be recalled and    | MPE XL Commands Reference |
| history stack     | reused, or recalled, modified, and reused.  | Manual (32650-90003)      |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------

          Table 1-1.  New MPE XL Capabilities (cont.) 

-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
|    CAPABILITY     |                  FUNCTION                   |         REFERENCE         |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Command search    | HPPATH permits modification of command      | MPE XL Commands Reference |
| path, modifiable  | search path; used with implied RUN and      | Manual (32650-90003)      |
|                   | execution of Command Files.                 |                           |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Control Mode      | The mode used when entering Access Port     | System Startup,           |
|                   | commands from the physical or remote System | Configuration and         |
|                   | Console.                                    | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Console Mode      | The mode used when entering CTRL A commands | System Startup,           |
|                   | from the physical or remote System Console  | Configuration and         |
|                   |                                             | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Dereferenced      | Permits interactive substitution of         | System Startup,           |
| variables         | variables in command lines.                 | Configuration and         |
|                   |                                             | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Implied :RUN      | Permits running programs from jobs and      | MPE XL Commands Reference |
|                   | sessions simply by entering the program     | Manual (32650-90003)      |
|                   | name.  The :RUN command still works as on   |                           |
|                   | MPE V, and is used if options other than    |                           |
|                   | ;INFO= and ;PARM= need to be specified.     |                           |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Multiple          | Permits storage of more than one            | System Startup,           |
| configuration     | configuration group and facilitates rapid   | Configuration and         |
| groups            | configuration changes.                      | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Programmatic      | Permits execution of programs and commands  | MPE XL Commands Reference |
| command execution | from within programs.                       | Manual (32650-90003);     |
|                   |                                             | Command Interpreter       |
|                   |                                             | Access and Variables      |
|                   |                                             | Programmer's Guide        |
|                   |                                             | (32650-90011)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Recursive search  | Permits searching for UDCs from the top of  | MPE XL Commands Reference |
| for UDC           | the catalog, regardless of the place in the | Manual (32650-90003)      |
|                   | catalog from which the search starts.       |                           |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------

          Table 1-1.  New MPE XL Capabilities (cont.) 

-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
|    CAPABILITY     |                  FUNCTION                   |         REFERENCE         |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Restore           | Capabilities are:  restore a file system    | MPE XL Commands Reference |
| enhancements (new | directory from a backup tape (DIRECTORY     | Manual (32650-90003);     |
| :RESTORE command  | parameter); store sets of files by a range  | Performing System         |
| parameters)       | of filecodes (FCRANGE); display tape label  | Management Tasks          |
|                   | and directory information for all or a      | (32650-90004)             |
|                   | subset of the files on a store tape         |                           |
|                   | (LISTDIR); specify disk volume, volume set, |                           |
|                   | or volume class where files will be         |                           |
|                   | restored (VOL, VOLSET, VOLCLASS); new       |                           |
|                   | wildcarding ( [ ] range).                   |                           |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Scanner /parser   | Provides increased flexibility in placement | MPE XL Commands Reference |
|                   | of positional and keyword parameters for    | Manual (32650-90003)      |
|                   | new and modified MPE XL commands.  Does not |                           |
|                   | affect unchanged commands common to MPE V/E |                           |
|                   | and MPE XL.                                 |                           |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Storage           | Store file system directory (DIRECTORY);    | MPE XL Commands Reference |
| enhancements (new | store sets of files by a range of file      | Manual (32650-90003);     |
| :STORE            | codes (FCRANGE); store files, by filelist   | Performing System         |
| parameters)       | from a volume set (ONVS); store a volume    | Management Tasks          |
|                   | set directory (DIRECTORY;ONVS= volumeset);  | (32650-90004)             |
|                   | specify consecutive (serial) or concurrent  |                           |
|                   | (parallel) backup devices (STORESET);       |                           |
|                   | produce tapes compatible with MPE V/E       |                           |
|                   | (TRANSPORT); read multiple files            |                           |
|                   | concurrently from disk and store to tape    |                           |
|                   | (INTER; new wildcarding ( [ ] range).       |                           |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| System backup     | New SYSGEN utility backs up system          | System Startup,           |
| enhancements      | configuration files independently of        | Configuration and         |
|                   | system, user, and directory files, which    | Shutdown Reference Manual |
|                   | are backed up with the :STORE command.      | (32650-90042) MPE XL      |
|                   |                                             | Commands Reference Manual |
|                   |                                             | (32650-90003) Performing  |
|                   |                                             | System Management Tasks   |
|                   |                                             | (32650-90004)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------

          Table 1-1.  New MPE XL Capabilities (cont.) 

-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
|    CAPABILITY     |                  FUNCTION                   |         REFERENCE         |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| System parameter  | New commands, executable from the           | System Startup,           |
| management        | Miscellaneous Configurator of the SYSGEN    | Configuration and         |
|                   | utility, provide control of session         | Shutdown Reference Manual |
|                   | duration (SESSION CITIMEOUT), job CPU time  | (32650-90042)             |
|                   | usage (JOB CPUTIME),and session logon time  |                           |
|                   | (SESSION LOGONTIMEOUT).                     |                           |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| System self-test  | Automatically tests system hardware after a | System Startup,           |
|                   | reset.                                      | Configuration and         |
|                   |                                             | Shutdown Reference Manual |
|                   |                                             | (32650-90042)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| System variables  | Several MPE XL variables are predefined by  | MPE XL Commands Reference |
|                   | the system.  Some may be modified           | Manual (32650-90003);     |
|                   | by:SETVAR.                                  | Command Interpreter       |
|                   |                                             | Access and Variables      |
|                   |                                             | Programmer's Guide        |
|                   |                                             | (32650-90011)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Timed terminal    | Permits user control of terminal read       | MPE XL Commands Reference |
| reads             | timeout with the HPTIMEOUT variable.        | Manual (32650-90003);     |
|                   |                                             | Command Interpreter       |
|                   |                                             | Access and Variables      |
|                   |                                             | Programmer's Guide        |
|                   |                                             | (32650-90011)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| User-created      | Permits user to define own prompt with      | MPE XL Commands Reference |
| prompt            | HPPROMPT variable.                          | Manual (32650-90003);     |
|                   |                                             | Command Interpreter       |
|                   |                                             | Access and Variables      |
|                   |                                             | Programmer's Guide        |
|                   |                                             | (32650-90011)             |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------
|                   |                                             |                           |
| Volume class      | A category of disk storage that contains    | Volume Management         |
|                   | one or more related files; can reside on    | (32650-90045)             |
|                   | more than one volume in a volume set.       |                           |
|                   |                                             |                           |
-----------------------------------------------------------------------------------------------

New MPE XL Utilities 

The general reference for MPE XL utilities is MPE XL System Utilities 
Reference Manual (32650-90081).  Additional references are listed by
utility.

          Table 1-2.  New MPE XL Utilities 

----------------------------------------------------------------------------------------------
|                           |                                    |                           |
|          UTILITY          |              FUNCTION              |         REFERENCE         |
|                           |                                    |                           |
----------------------------------------------------------------------------------------------
|                           |                                    |                           |
| CLKUTIL                   | Controls and displays time and     | System Startup,           |
|                           | date during system startup         | Configuration and         |
|                           |                                    | Shutdown Reference Manual |
|                           |                                    | (32650-90042)             |
|                           |                                    |                           |
----------------------------------------------------------------------------------------------
|                           |                                    |                           |
| DIRMIG                    | Utility used to migrate MPE V/E    | Migration Process Guide   |
|                           | operating environment data to an   | (30367-90007)             |
|                           | MPE XL system.                     |                           |
|                           |                                    |                           |
----------------------------------------------------------------------------------------------
|                           |                                    |                           |
| ISL (Initial System       | Provides user interface and        | System Startup,           |
| Loader)                   | command set to implement system    | Configuration and         |
|                           | load and startup utilities.        | Shutdown Reference Manual |
|                           |                                    | (32650-90042)             |
|                           |                                    |                           |
----------------------------------------------------------------------------------------------
|                           |                                    |                           |
| NMMGR                     | Set of utilities used for          | System Startup,           |
|                           | configuring remote devices; SYSGEN | Configuration and         |
|                           | references NMMGR to prevent        | Shutdown Reference Manual |
|                           | conflicts between configurations   | (32650-90042); NS3000/XL  |
|                           | for local and remote devices.      | Network Manager's         |
|                           |                                    | Reference Manual          |
|                           |                                    | (36920-90002)             |
|                           |                                    |                           |
----------------------------------------------------------------------------------------------
|                           |                                    |                           |
| NMMAINT                   | Displays version numbers of        | NS3000/XL Network         |
|                           | supplied Node Management Service   | Manager's Reference       |
|                           | (NMS) data communications          | Manual (36920-90002)      |
|                           | software.                          |                           |
|                           |                                    |                           |
----------------------------------------------------------------------------------------------
|                           |                                    |                           |
| OCA                       | Analyzes MPE V/E application       | Migration Process Guide   |
|                           | software for problems which might  | (30367-90007)  [REV BEG]  |
|                           | arise when migrating them to MPE   |                           |
|                           | XL                                 |                           |
|                           |                                    |                           |
----------------------------------------------------------------------------------------------
|                           |                                    |                           |
| SPFXFER                   | Transfers spoolfiles from the      | Native Mode Spooler       |
|                           | Classic HP3000 format to the MPE   | Reference Manual          |
|                           | XL Native Mode Spooler format and  | (32650-90166);            |
|                           | back again.                        | Introduction to MPE XL    |
|                           |                                    | for MPE V/E System        |
|                           |                                    | Administrators            |
|                           |                                    | (30367-90003)[REV END]    |
|                           |                                    |                           |
----------------------------------------------------------------------------------------------

New MPE XL Commands 

The general reference for MPE XL commands is the MPE XL Commands 
Reference Manual (32650-90003)

          Table 1-3.  New MPE XL Commands 

--------------------------------------------------------------------------------------------
|                           |                                                              |
|          COMMAND          |                           FUNCTION                           |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| CALC                      | Evaluates an expression.                                     |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| CCXL                      | HP C/XL compiler.  Available only when HP C/XL is installed. |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| CCXLGO                    | Compiles, links, and executes an HP C/XL program.  Available |
|                           | only when HP C/XL is installed.                              |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| CCXLLK                    | Compiles and links an HP C/XL program.  Available only when  |
|                           | HP C/XL is installed.                                        |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| CHGROUP                   | Changes the user's logon group.                              |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| COB74XL                   | Compiles a COBOL II/XL program (1974 ANSI).                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| COB74XLG                  | Compiles, links, and executes a COBOL II/XL program (1974    |
|                           | ANSI).                                                       |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| COB74XLK                  | Compiles and links a COBOL II/XL program (1974 ANSI).        |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| COB85XL                   | Compiles a COBOL II/XL program (1985 ANSI).                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| COB85XLG                  | Compiles, links, and executes a COBOL II/XL program (1985    |
|                           | ANSI).                                                       |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| COB85XLK                  | Compiles and links a COBOL II/XL program (1985 ANSI).        |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| COPY                      | Copies one disk file to another.                             |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| DELETEVAR                 | Deletes a specific MPE XL variable or set of variables.      |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| DO                        | Reexecutes any command still retained in the command line    |
|                           | history stack.  Optionally, commands can be modified before  |
|                           | reexecution.                                                 |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| ECHO                      | Echoes a message to the standard list device.                |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| ENDWHILE                  | Ends a WHILE block.                                          |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| ERRDUMP                   | Allows the user to dump either the process or the system     |
|                           | error stack to whatever depth is specified.                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------

          Table 1-3.  New MPE XL Commands (cont.) 

--------------------------------------------------------------------------------------------
|                           |                                                              |
|          COMMAND          |                           FUNCTION                           |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| EXIT                      | Terminates the Command Interpreter.                          |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FTNXL                     | Compiles a FORTRAN 77/XL program.                            |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FTNXLGO                   | Compiles, links, and executes a FORTRAN 77/XL program.       |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FTNXLLK                   | Compiles and links a FORTRAN 77/XL program.                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| INPUT                     | Permits interactive assignment to variables.                 |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| LINK                      | Merges relocatable object files to create an executable      |
|                           | program file.                                                |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| LISTREDO                  | Displays the contents of the command line history stack.     |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| OCTCOMP                   | Translates MPE V/E compatible object code to MPE XL          |
|                           | instructions.                                                |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| OPTION                    | Now a command as well as a User Command header option.  It   |
|                           | modifies the environment of User Defined Commands and        |
|                           | Command Files.    [REV BEG]                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| PASSWORD                  | Allows users to change passwords.[REV END]                   |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| PASXL                     | Compiles an HP Pascal/XL program.                            |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| PASXLGO                   | Compiles, links, and executes an HP Pascal/XL program.       |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| PASXLLK                   | Compiles and links an HP Pascal/XL program.                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| PRINT                     | Prints the contents of a file to the standard listing device |
|                           | or to a specified file.                                      |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| RETURN                    | Exits a UDC or a Command File immediately.                   |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| SETVAR                    | Assigns a value to, or creates, an MPE XL variable.          |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| SHOWVAR                   | Displays specific variables names and their values.          |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| SYSGEN                    | Starts configuration dialog and/or installation tape         |
|                           | creation.  This takes the place of :SYSDUMP.                 |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| VSCLOSE                   | Instructs the system to close a volume set.                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------

          Table 1-3.  New MPE XL Commands (cont.) 

--------------------------------------------------------------------------------------------
|                           |                                                              |
|          COMMAND          |                           FUNCTION                           |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| VSOPEN                    | Reopens a volume set that was closed with VSCLOSE.           |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| VSRELEASE                 | Releases a volume set that was reserved with VSRESERVE.      |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| VSRELEASESYS              | Releases a volume set system-wide.                           |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| VSRESERVE                 | Requests the Operator to put a volume set on line and        |
|                           | reserves the volume set for the user.                        |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| VSRESERVESYS              | Reserves a volume set system-wide.                           |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| VSTORE                    | Verifies that tape files stored with :STORE are error-free.  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| WHILE                     | Controls job, UDC, or Command File execution flow with a     |
|                           | looping structure.                                           |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| XEQ                       | Executes a program or Command File and prevents MPE XL from  |
|                           | executing a built-in command or UDC with the same name.      |
|                           |                                                              |
--------------------------------------------------------------------------------------------



MPE/iX 5.0 Documentation