Mixed-case text
Action statements may be written in mixed-case (uppercase and lowercase) text.
Evaluation of script commands and other keyword parameters is the same for uppercase and lowercase text. However, text data that appears within quotes is evaluated exactly as entered.
LET A = 'A 'is the same as:let a = 'A'
LET A = 'A 'is the not the same as:LET A = 'a'
LET A = 'A 'is the not the same as:LET A = 'a'
JCL data lines within a JCL GEN... ENDJCL blocks are case sensitive and are treated like text data within quotes. These lines should be written in uppercase text to avoid JCL errors. Where a variable appears within the body of the JCL data lines, the variable name may be written in mixed-case text.
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