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  • Linkfest

    September 8, 2019

    Introductory learning materials Start here: Here’s What Happens When an 18 Year Old Buys a Mainframe. Great video. z/OS introductory video course http://www.redbooks.ibm.com/redbooks.nsf/redbookabstracts/crse0304.html?Open Master the Mainframe https://www.ibm.com/it-infrastructure/z/education/master-the-mainframe The ABCs of System Programming redbooks http://www.redbooks.ibm.com/abstracts/sg246981.html?Open IBM z/OS Basic Skills page in Knowledge Center.  https://www.ibm.com/support/knowledgecenter/en/zosbasics/com.ibm.zos.zbasics/lcmain.html Introduction to the new mainframe http://www.redbooks.ibm.com/abstracts/sg246366.html?Open Introduction to CICS http://www.redbooks.ibm.com/abstracts/crse0303.html?Open Db2 DB2…

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  • Compare Disk contents with Catalogs – a custom Rexx and JCL solution

    September 7, 2019

    This one is untested since 1997. A little warning, though I believe it will still work. During a z/OS migration (probably still MVS/ESA or maybe OS/390) we needed to restructure the catalog layout. The client did not have a good catalog structure in place and almost everything had ended up in the master catalog. A…

    Read more: Compare Disk contents with Catalogs – a custom Rexx and JCL solution
  • A simple Rexx program to find matches / unmatches in file contents

    September 7, 2019

    The problem were are solving here: You have 2 files, one has records (lines) with “key” values in the first word, the second has records (lines) “key” values in the second word. (A Word here is defined as a string delimited by blanks – similar to the definition in Rexx – See Rexx Reference) For…

    Read more: A simple Rexx program to find matches / unmatches in file contents
  • Copy members from one PDS(E) to another using the IEBCOPY utility

    September 7, 2019

    This JCL script shows how to copy members from one PDS library to another.  I have retained the input file being tape in the original JCL script for nostalgic reasons only; you will unlike ever use this nowadays. As unlikely, you will be allocating the output dataset on a specific volume, so normally you could omit…

    Read more: Copy members from one PDS(E) to another using the IEBCOPY utility
  • How to authenticate to the z/OSMF API with a certificate

    September 7, 2019

    This is a brief description of how to use the z/OSMF API with certificate authentication, from a PHP application. Create a certificate.For example with openSSL: openssl req -newkey rsa:2048 -nodes -keyout yourdomain.key  -out yourdomain.csr Send the certificate to a certificate authority to get it signed. Add the signed certificate to RACF: RACDCERT CHECKCERT(CERT)RACDCERT ADD(CERT) TRUST WITHLABEL(‘yourlabel-client-ssl’)…

    Read more: How to authenticate to the z/OSMF API with a certificate
  • Compile and run a COBOL program on z/OS – A mini-tutorial

    September 7, 2019

    With this mini-tutorial you may get a quick start with COBOL on z/OS. It gives you a handson overview of the process to get a COBOL program running on z/OS. The tutorial will show you how to create a Hello World COBOL program on z/OS, compile it and then run in. You can find the…

    Read more: Compile and run a COBOL program on z/OS – A mini-tutorial
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