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Xpertised Rexx Online Training
- 1. REXX
- 2. • The benefits of using REXX • Classic REXX, SAA REXX, and ANSI REXX • Literal strings • Numbers • Concatenation operators • Variables • REXX special variables: RC, RESULT, and SIGL • Compound symbols • Constant symbols • Arithmetic operators • Comparative operators • Transitivity • NUMERIC instruction • Clauses • Logical operators • Operator precedence • Labels • SIGNAL instruction • CALL instruction • Function call • Arguments string xpertised REXX • Running a program under TSO/E • Running a program under CMS • Running a program on a PC • Recursivity • Internal routines, built-in functions, and external routines • IF construct • NOP instruction • Simple DO group • Simple repetitive DO group • Controlled repetitive DO group • Complicated DO group • LEAVE instruction • ITERATE instruction • SELECT group • Commands • ADDRESS instruction • Host command environments • TRACE instruction • TSO/E REXX commands • INTERPRET instruction • Character built-in functions • Arithmetic built-in functions • Writing your own mathematical functions • Exception handling • State built-in functions • Interactive debugging • Fixed-point numbers • Conversion built-in functions • I/O built-in functions • Miscellaneous built-in functions • TSO/E and VM/CMS external functions • DROP instruction • UPPER instruction • PROCEDURE instruction • EXIT instruction • PARSE instruction • Running a program in USS (the UNIX shell under MVS-OS/390- z/OS) • Immediate commands • Terminal read • External data queue
- 3. • ARG instruction • PULL instruction • PUSH instruction • External data queue buffers • VM/CMS and TSO/E REXX EXECIO command • SAY instruction • Extended MCS console session • VM/CMS and TSO/E external functions • REXX in TSO/E and in non-TSO/E address spaces • Foreground and background processing xpertised REXX