Passing arguments using the call instruction or rexx function call passing arguments. On other operating environments, the tso statement has no effect, whereas the x statement is always processed. Rexx i r t t d e t d d e t l drexx is restructured extended executor language, a command language used with tso both clists and rexx offer shell scripttype processing. Tsoe rexx is the implementation of the systems application. Due to system configuration issues, the %whohas command is not available. Proprietary and open source rexx interpreters exist for a wide range of computing platforms. Using rexx to populate the command line on the ispf command scree n discussion list 12302004 11. Language codes for setlang function that replace the function. The following are tso clists and tso commands, some provide for options, and tions, and are described later. I want to write a rexx program to execute several mvs commands serially. That is, the tso host command environment address tso is available to the exec. Establishing libraries invoking rexx procedures terminating rexx. Since this is a question on the usage of zos, i think you will be able to get better answers somewhere else, but i guess you can use tso ispf gateway for that purpose. Aug 17, 2006 is it possible to submit a set of tso commands from rexx.
The rexx language on tso improves on rexx in the tso environment in every way. Introduction to rexx programming language clarence burg september 9, 2011 1 introduction to rexx rexx is a programming language that has much less syntax and extraneous content than other available languages. The chapter s in this part cover the following topics. As such, it is an excellent choice for transferring pseudocode into a. A function is a builtin feature of the rexx language. New with tso e version 2, rexx is a highlevel procedural language that allows programmers to mix instructions with tso commands, and build highpowered tools and utilities, called execs. This part of the book is for programmers who want to learn the rexx language. Access to classic mvs resources can be done by using rexx function shcmd to trap the output from commands run under tso. It is the tool of choice in most if not all of todays larger data centres for those who need to implement new operational procedures both quickly and effectively. See the tsoe rexx library for more information about these commands and the.
You can specify the tso commands individually or include them in clists or rexx execs. The introduction to rexx programming language course introduces the rexx programming language and explains how it is run. In 1979, mike cowlishaw, ibm fellow, designed a ohumancentrico programming language, rexx. Whether you can trap output depends on how the command sends its output to the screen. The programcommand also returns some numeric value that rexx automatically assigns to the variable named rc. Utilities option in ispfpdf or with the tsoe allocate command. Rexx is a highlevel scripting language created in the 1980s by ibm for the ibm mainframe operating systems cms and mvs.
One of the biggest advantages in rexx is the ability to create reusable scripts. Together, the language processor and the rexx language are known as tsoe rexx. The rexx macros toolbox brief descriptions of the edit macros. Is it possible to submit a set of tso commands from rexx. The executil command can be used only if the environment is. Most programscommands return a 0 if they operate successfully. This routine can be called as a tso rexx command or as an.
Rexx programmers reference the rexx language association. New with tsoe version 2, rexx is a highlevel procedural language that allows programmers to mix instructions with tso commands, and build highpowered tools and utilities, called execs. Both shcmd and tsocmd are available from the ibm kingston ftp site. Parameters you can use in any language processor environment.
Does any one know how to code the call to a rexx program in a command line build to enable the execution of ispf commands in the rexx. Since this is a question on the usage of zos, i think you will be able to get better answers somewhere else, but i guess you can use tsoispf gateway for that purpose. Is there a tso command written in rexx or clist that can. V contents of a variable outtrap restrictions not all output from tso commands can be trapped by rexx. The rexx language is a versatile generalpurpose programming language that.
Rexx adduser username exit i figured out this works because the rexx interpreter passes on every command that is not a rexx command to tso by default and adduser is both a racf command and a tso command with is mapped to racf. Commands can be run under tso using the tsocmd shell command. Introduction the rexx language has many features that make it a powerful programming tool. Using rexx to populate the command line on the ispf. Rexx programming under tsoispf rexx is a powerful multipurpose and userfriendly programming tool used to exploit many ibm and thirdparty operational products. Programming in the tso clist interactive language m51.
Rexx system commands one of the biggest advantages in rexx is the ability to create reusable scripts. Hi all, i have a requirement where i need to compilelink edit my rexx script and invoke the load module using exec pgmpgma. Identify and use tso e rexx commands, use the execio file control command, identify and use tso e external functions, identify and use some of the zos and vendor host command environments. This is particularly true of the standard dos commands such as del, copy, etc. Rexx with zos and tsoe online mainframe training course. The restructured extended executor rexx language is a highlevel procedures language that enables inexperienced users as well as experienced programmers to combine rexx instructions and host commands and services into programs called rexx execs. On demand computing with rexx, pdf file from michael beer a rexx based intranet solution, pdf file from johann taschler a large netrexx application, pdf file from rene jansen a large mainframe rexx application, pdf file from anthony rudd db123. Rexx was designed and first implemented, in assembly language, as an owntime project between 20 march 1979 and mid1982 by mike cowlishaw of ibm, originally as a scripting programming language to replace the languages exec and exec 2. Whereis find the true location of a specified module in the current path whoami attempts to identify the current execution environment. Identify and use tsoe rexx commands, use the execio file control command, identify and use tsoe external functions, identify and use some of the zos and vendor host command environments. Mainframe express enables you to start a tso session to execute tso commands. A listing of the builtin functions is included later in this book.
In general, you can only use these commands in rexx execs in any address space, not in clists or from tsoe ready mode. After completing this course the student should be able to. If you run a rexx exec in the tso e environment you created, the exec can contain tsoe commands, external functions, and services that an exec running in a tso e address space can use. Rexx restructured extended executor is an interpreted programming language developed at ibm by mike cowlishaw. Rexx functions let you manipulate data strings or do mathematics simply with a minimum of programming effort. An advantage to invoking a clist instead of a panel when you have a choice is that you have an extra window and will return where you started. Oddly enough, there may be circumstances in working with omvs when it is important to find this out. Introduction to the rexx programming language how to. Note before using this information and the product it supports, be sure to read the general information under notices on page 507. Rexx language extensions for db2 and zos let you do it. This syntax is different from the syntax you are used to with the clist programming language and with the majority of tso commands. For more information, refer to the ibm z netview administration. Reading and writing data using rexx execio on os390 and. Commands, functions, and variables on page 115 provides descriptions of all control keywords, control variables, and functions for the netview command list language and for rexx functions provided by the netview program.
Type tso exec pdsrexxmember on the command line on any screen. Its goal is to make scripting as easy, fast, reliable, and errorfree as possible. Tso e rexx is the implementation of the systems application architecture saa procedures language on the mvs system. The rexx language is a versatile generalpurpose programming language that can be used by new and experienced programmers. Often in organizations nowadays, having reusable scripts is a big value add in saving time to do common repetitive tasks. Identify the common terms, variables and operators used in rexx. But i have the authority to run then myself from the command screen. Anyone with a need or desire to learn and understand the rexx programming language. An interpreted language is different from other programming languages, such as cobol, because it is not necessary to compile a rexx command list before executing it. Rexx execs can execute in any mvs address space both tso e and nontso e.
Identify the features of the rexx programming language. If any of these tso statements are issued in a background environment, the command is not issued and the return code is set to 0. This book explains 78 rexx functions that you can use in your rexx programs. For example, technology teams in an it organization can have the need to have scripts which do common everyday tasks. Many programming languages are designed for compatibility with older languages, and are written for specific audiences or platforms. Urgent rexx exec load module and tsoe commands clist. Most programs commands return a 0 if they operate successfully. When the program finishes running, it returns control back to rexx. Rexx reference manual tso rexx is t he restructured extended executor language. It is simply not storing the output which i should get after applying tso whois command in output file. When a rexx script calls a function, the script halts until the function has completed its work and returned its value.
This rexx support provides a simple and powerful alternative to using sdsf batch. Prefix member name by exec within the member listing screen the method weve been using so far. Host command environments in zos tso used to run tso e commands like allocate and transmit only available to rexx running in a tso e address space the default environment in a tso e address space tso e rexx reference sa227790 example. Consider the following when deciding whether to implement a function as a command processor, rexx exec or clist. Rexx is a highlevel scripting language created in the 1980s by ibm for. The rexx macros toolbox brief descriptions of the edit.
For more information about the tso e environment service and. Often in organizations nowadays, having reusable scripts is a big value add i. On demand computing with rexx, pdf file from michael beer a rexxbased intranet solution, pdf file from johann taschler a large netrexx application, pdf file from rene jansen a large mainframe rexx application, pdf file from anthony rudd db123. Mar 29, 2009 can you tell me how to execute tso commands in rexx i want to execute change all command via rexx i tried the below code in rexx but not working. Rexx reference manual tso rexx is the restructured extended executor language.
This routine can be called as a tsorexx command or as an ispf edit macro. Nov, 2015 rexx exec load module and tsoe commands by akatsukami fri nov, 2015 3. Most of the tsoe rexx commands can be used in any type of language processor environment. Using rexx to populate the command line on the ispf command. The exceptions are the executil command and the immediate commands he, hi, ht, rt, te, and ts. This doesnt make it worse, or better, just different and that difference you will need to remember as it could. I am able to do that, but commands like vgetvput, alloc, sysdsn etc are failing. You now have a rexx library within which to put all the rexx execs that you will. Rexx stacks the stack is sometimes called the external data queue, but we follow common usage and refer to it as the stack. Reading and writing data using rexx execio on os390 and zos. It is a structured, highlevel programming language designed for ease of learning and reading. Terminology data structures running rexx programs under tsoe. Other language versions may be available from the publications website.
If you want to get modern programming using rexx pdf ebook copy write by good author language on tso rexx in the tso environment rexx reference. This faq is for rexxmvs, that is, rexx for ibm mainframes mvs, os390 and vm. The tsoe rexx commands are not the same as tsoe command processors, such as allocate and printds. If i run this rexx without outtrap and whois commands it is writing the data from input data set to output data set, however what i actually want is to store the output after applying whois command.
Summary of rexx syntax and builtin functions summary of instructions this is a comment expression execute a host command symbolvalue assignment address value environment change the current environment address environment command execute a command in an environment call name arg,arg. A new tool for database and it migrations, pdf file from thomas schneider. You can also run tso commands in batch mode via the ikjeft01 utility. Considerations for interrupting exec processing using the he immediate command to halt an exec starting and stopping tracing tsoe rexx programming. You can use the tso statement to issue most tso commands or to execute clists or rexx execs. Rexx restructured extended executor is designed to be a scripting language. This manual is a comprehensive reference for the rexx language. Rexx is a programming language, and a scripting language. Is the same way possible in submitting a sequence of tso commands. I need to write a rexx exec or clist to identify who has enqueued a dataset and display a user friendly message on an ispf dialog application. A new function called rexx with sdsf is available that provides access to sdsf functions through the use of the rexx programming language. There are numerous functions built into rexx, and these are automatically available to be called by a script.