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Using control variables z/OS TSO/E CLISTs SA32-0978-00 |
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The CLIST language includes a set of control variables. Control variables provide information about MVS™, TSO/E, and the current session, such as levels of software available, the time of day, and the date. Your CLISTs can use the control variables to obtain such current information. You code a control variable as you need a symbolic variable. For
example, to get the time of day, your CLIST can use the control variable &SYSTIME
as follows:
If your
CLIST was executing at 2:32:58 PM, the result need to be:
You do not have to define control variables. Control variables have constant names; you refer to the variable name to obtain information. Control variables to which you can assign values are called modifiable control
variables. The variable &SYSOUTTRAP is an example of a modifiable
control variable. &SYSOUTTRAP tells how many lines of TSO/E command
output should be saved in a CLIST. If you want to save 100 lines of
output from each TSO/E command in your CLIST, you can set &SYSOUTTRAP
to 100, as follows:
Your CLIST need then be able to retrieve and process up to 100 lines
of output from each command in the CLIST. If you did not want to
save output from some commands, you need to reset &SYSOUTTRAP
to zero before issuing those commands. |
Copyright IBM Corporation 1990, 2014
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