look in the mvs jcl reference manual .4 Using System Symbols and JCL Symbols
System symbols and JCL symbols are character strings that represent variable information in JCL. They allow you to modify JCL statements in a job easily. A symbol-defining string is limited to eight characters, not including an identifying ampersand. This section: Describes system symbols and JCL symbols and the differences between them Explains how to define JCL symbols Shows how to code system symbols and JCL symbols. 5.4.1 What are System Symbols? 5.4.2 What are JCL Symbols? 5.4.3 Coding Symbols in JCL 5.4.4 Determining Equivalent JCL 5.4.5 Examples of Defining and Coding Symbols in JCL 5.4.6 Using Symbols in Nested Procedures 5.4.7 Examples of Coding Symbols in Nested Procedures -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Johnson Jr., Donald E Sent: Wednesday, April 08, 2009 12:38 PM To: IBM-MAIN@bama.ua.edu Subject: Using system variables in JCL I have had someone ask me a question that I could not answer directly, and hope someone can point me in the right direction. How can I determine what system variables are available for use in JCL DSN statements? For example, I know that I can use &SYSUID, but it seems that other variables like &JOBNAME, &YYMMDD, &DATE are not valid. Is there somewhere I can look to use these other variables, or to find out what is available? Thanks! Don Don Johnson CA Sr. Support Engineer This e-mail and any files transmitted with it are for the sole use of the intended recipient(s) and contain information that may be privileged and confidential. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient of this e-mail, please delete this e-mail and any files transmitted with it and notify the sender immediately. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
