Using The Mvsvar Function; Using The Outtrap Function - IBM TSO/E REXX User Manual

Using the MVSVAR Function

The MVSVAR function retrieves information about MVS, TSO/E, and the current
session, such as the symbolic name of the MVS system, or the security label of the
TSO/E session. The information retrieved depends on the argument specified.
To retrieve the information, use the MVSVAR function immediately followed by an
argument value enclosed in parentheses. For example, to find out the APPC/MVS
logical unit (LU) name, use the MVSVAR function with the argument SYSAPPCLU.
appclu = MVSVAR('SYSAPPCLU')
The MVSVAR function is available in any MVS address space. Compare this to
the SYSVAR function which also retrieves system information but can only be used
in REXX execs that run in the TSO/E address space.
Many of the MVSVAR arguments retrieve the same information as do CLIST control
variables.
The following table lists the items of information that are available for retrieval by
MVSVAR.

Using the OUTTRAP Function

The OUTTRAP function puts lines of command output into a series of numbered
variables, each with the same prefix. These variables save the command output
and allow an exec to process the output. Specify the variable name in parentheses
following the function call.
SAY 'The OUTTRAP variable name is' OUTTRAP('var')
/* Displays the variable name in which command output is trapped. */
In this example, the variable var becomes the prefix for the numbered series of
variables. Var1, var2, var3, and so on, receive a line of output each. If you do not
set a limit to the number of output lines, the numbering of variables continues as
Argument Value
SYSAPPCLU
SYSDFP
SYSMVS
SYSNAME
SYSSECLAB
SYSSMFID
SYSSMS
SYSCLONE
SYSPLEX
SYMDEF
Description
the APPC/MVS logical unit (LU) name
the level of MVS/Data Facility Product (MVS/DFP)
the level of the base control program (BCP) component of
z/OS
the name of the system your REXX exec is running on, as
specified in the SYSNAME statement in SYS1.PARMLIB
member IEASYSxx
the security label (SECLABEL) name of the TSO/E session
identification of the system on which System Management
Facilities (SMF) is active
indicator whether DFSMS/MVS is available to your REXX
exec
MVS system symbol representing its system name
the MVS sysplex name as found in the COUPLExx or
LOADxx member of SYS1.PARMLIB
symbolic variables of your MVS system
Chapter 10. Using TSO/E External Functions
TSO/E External Functions
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