IBM TSO/E REXX User Manual

external function
TSO/E
description 119
GETMSG 120
LISTDSI 120
MSG 122
OUTTRAP 123
PROMPT 124
SETLANG 125
STORAGE 126
SYSDSN 126
SYSVAR 127
external subroutine 71
F
FIFO (first in first out) 135
file 195
file I/O 154
foreground processing
explicit execution 173
implicit execution 173
of an exec 173
function
ADDRESS built-in 107
ARG built-in 75, 82
argument 61
built-in
arithmetic 63
comparison 63
conversion 64
formatting 64
string manipulating 64
testing input with 66
comparison to a subroutine 69, 83
description 69
built-in 61
function package 61, 133
TSO/E external 61, 119
user-written 61
exposing a specific variable 81
external 78
internal 78
passing information to 81
possible problem 80
using a variable 79
PROMPT 100
protecting a variable 80
QUEUED built-in 137, 144
receiving information from 83
using the ARG built-in function 82
returning a value 62
search order 134
TSO/E external
description 119
GETMSG 120
LISTDSI 120
MSG 122
MVSVAR 123
OUTTRAP 123
PROMPT 124
SETLANG 125
function (continued)
TSO/E external (continued)
STORAGE 126
SYSCPUS 126
SYSDSN 126
SYSVAR 127
using EXIT 78
using PROCEDURE 80
using PROCEDURE EXPOSE 81
using RETURN 78
when to make internal or external 79
writing 77
function package
description 133
local 134
system 134
user 134
G
GETMSG external function 119, 120
GOTO 58
H
HE (halt execution) 49
HI (halt interpretation) 49
host command environment 101
APPC/MVS 104
changing 106
checking if it is available 107
compared to language processor environment 181
default 101, 103
description 101
finding the active environment 107
I
IBM Compiler for REXX/370
benefits 5
IBM Library for REXX/370
benefits 5
identifier
of an exec 8, 14, 174
IF/THEN/ELSE instruction
flowchart 42
matching clauses 43
nested 43
using DO and END 43
using NOP 43
IKJEFT01 176, 177
implicit execution 17, 185
from ISPF/PDF command line 18
from ISPF/PDF command option 17
from READY 17
speeding up search time 18
using % 18
inclusive OR 33
infinite loop
from TSO/E background and MVS batch 180
stopping 48
214 z/OS V1R1.0 TSO/E REXX User’s Guide

IBM TSO/E REXX Specifications

General

Brand	IBM
Model	TSO/E REXX
Category	Computer Hardware
Language	English