IBM TSO/E REXX User Manual page 236

REXX language (continued)
description 3
example
use of uppercase and lowercase xiv
exec
description xiii, 8
feature of 3
program (exec) xiii
REstructured eXtended eXecutor xiii
SAA (Systems Application Architecture) xiii, 4
REXX program
portability of 6
REXX special variable
RC
for debugging 112
used with a command 97
used with stack command 144, 145, 149
RESULT 75, 100
used with EXIT 57
SIGL
for debugging 112, 113
rules
syntax 9
S
SAA (Systems Application Architecture) xiii
general description 6
Procedures Language 4
SAA Procedures Language 6
SAY instruction 8
SELECT/WHEN/OTHERWISE/END instruction
flowchart 44
semicolon
to end an instruction 11
service
for REXX in MVS 171
SETLANG external function
valid language codes 125
SIGL special variable
for debugging 112, 113
SIGNAL instruction 58
SIGNAL ON ERROR instruction 113
SOLDISP 129
SOLNUM 129
special variable 100
stack 135
stem
used with OUTTRAP function 123
STORAGE external function 126
string 9
SUBCOM command 107
subcommand environment 101
SUBMIT command 177
subroutine
calling 57
comparison to a function 69, 83
description 69
exposing a specific variable 74
external 71
internal 71
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subroutine (continued)
passing information
using an argument 74
passing information to
possible problem 72
using a variable 72
protecting variable 73
receiving information from
RESULT 75
using the ARG built-in function 75
returning a value 57
using CALL/RETURN 70
using PROCEDURE 73
using PROCEDURE EXPOSE 74
when to make internal or external 71
writing 70
SUBSTR built-in function 70
SYMDEF 123
syntax
rules of REXX 9
SYSAPPCLU 123
SYSCLONE 123
SYSCPU 128
SYSCPUS external function 126
SYSDFP 123
SYSDSN external function 126
SYSDTERM 128
SYSENV 128
SYSEXEC 17, 174
allocating to 191
SYSEXEC system file
reason to allocate to 174
SYSHSM 129
SYSICMD 128
SYSISPF 128
SYSJES 129
SYSKTERM 128
SYSLRACF 129
SYSLTERM 128
SYSMVS 123
SYSNAME 123
SYSNEST 128
SYSNODE 129
SYSPCMD 128
SYSPLANG 128
SYSPLEX 123
SYSPREF 128
SYSPROC 14, 17, 128, 174
allocating to 192
SYSPROC system file
reason to allocate to 174
SYSRACF 129
SYSSCMD 128
SYSSECLAB 123
SYSSLANG 128
SYSSMFID 123
SYSSMS 123
SYSSRV 129
system file
allocating to 17, 174, 185
reason to allocate to 174