Michael Cairns
Contributor
Michael (Mike) Cairns has been working in IT since 1986, specializing in RACF and z/OS security but interested in anything having to do with the mainframe world. He is currently employed within the financial sector in Switzerland, learning to be an IDMS DBA and remains available for mainframe security architecture engagements worldwide. He may be reached at mike@racfconsultant.com.
Mainframe Master Innovations: Automation and Mainframe Compliance
July 20, 2026
Articles
More REXX and TSO functions
December 1, 2008
In this primer in the REXX programming language you’ll get back to actually writing code, rather than dealing with environmental requirements.
ArticlesA Beginner’s Guide to the REXX Programming Language on z/OS
September 1, 2008
How to read and write files in the REXX programming language on z/OS.
ArticlesSystems Programmers Tips and Tricks for ISPF
July 1, 2006
A look at the time-sharing option and other ISPF topics.
ArticlesSystem Programmers’ Tips and Tricks for ISPF Revisited
March 30, 2006
More on the ISPF Editor and SDSF.