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- CLIST abstract "CLIST (Command List) (pronounced "C-List") is a procedural programming language for TSO in MVS systems. It originated in OS/360 Release 20 and has assumed a secondary role since the availability of Rexx in TSO/E Version 2.In its basic form, a CLIST program (or "CLIST" for short) can take the form of a simple list of commands to be executed in strict sequence (like a DOS batch file (*.bat) file). However, CLIST also features If-Then-Else logic as well as loop constructs.CLIST is an interpreted language. That is, the computer must translate a CLIST every time the program is executed. CLISTs therefore tend to be slower than programs written in compiled languages such as COBOL, FORTRAN, or PL/1. (A program written in a compiled language is translated once to create a "load module" or executable.)CLIST can read/write MVS files and read/write from/to a TSO terminal. It can read parameters from the caller and also features a function to hold global variables and pass them between CLISTs. A CLIST can also call an MVS application program (written in COBOL or PL/I, for example). CLISTs can be run in background (by running JCL which executes the TSO control program (IKJEFT01)). TSO I/O screens and menus using ISPF dialog services can be displayed by CLISTs. Compare the function of CLIST with that provided by REXX.Example program:PROC 0WRITE HELLO WORLD!Adding If-Then-Else logic: /********************************************************************/ /* MULTI-LINGUAL "HELLO WORLD" PROGRAM. */ /* */ /* THIS CLIST, STORED AS USERID.TSO.CLIST(TEST), CAN BE INVOKED */ /* FROM THE ISPF COMMAND LINE AS SHOWN IN THE FOLLOWING EXAMPLE: */ /* */ /* COMMAND ===> TSO TEST SPANISH */ /* */ /********************************************************************/ PROC 1 LANGUAGE IF &LANGUAGE = SPANISH THEN + WRITE HOLA, MUNDO ELSE IF &LANGUAGE = FRENCH THEN + WRITE BONJOUR, MONDE ELSE + WRITE HELLO, WORLD EXITNote:-Here PROC is treated as a separate routine.".
- CLIST wikiPageID "391542".
- CLIST wikiPageRevisionID "541148094".
- CLIST hasPhotoCollection CLIST.
- CLIST notability "October 2011".
- CLIST unreferenced "December 2009".
- CLIST unreferenced "October 2011".
- CLIST subject Category:IBM_mainframe_operating_systems.
- CLIST subject Category:Procedural_programming_languages.
- CLIST type ProgrammingLanguage.
- CLIST type Software.
- CLIST type Work.
- CLIST type CreativeWork.
- CLIST type InformationEntity.
- CLIST comment "CLIST (Command List) (pronounced "C-List") is a procedural programming language for TSO in MVS systems. It originated in OS/360 Release 20 and has assumed a secondary role since the availability of Rexx in TSO/E Version 2.In its basic form, a CLIST program (or "CLIST" for short) can take the form of a simple list of commands to be executed in strict sequence (like a DOS batch file (*.bat) file).".
- CLIST label "CLIST".
- CLIST label "CLIST".
- CLIST label "CLIST".
- CLIST label "CLIST".
- CLIST label "CLIST".
- CLIST label "Command LIST".
- CLIST sameAs CLIST.
- CLIST sameAs CLIST.
- CLIST sameAs Command_LIST.
- CLIST sameAs CLIST.
- CLIST sameAs m.022s20.
- CLIST sameAs Q579880.
- CLIST sameAs Q579880.
- CLIST wasDerivedFrom CLIST?oldid=541148094.
- CLIST isPrimaryTopicOf CLIST.