Using OPS/REXX › OPS/REXX Instructions › TRACE Instruction

TRACE Instruction

Like standard REXX, OPS/REXX accepts the following syntax:

TRACE setting

Unlike standard REXX, OPS/REXX also supports the following syntax, which traces all changes made to the variables listed in variables:

TRACE VAR variables

A variable specified on the TRACE VAR instruction is ignored (not traced) if it is a:

• Global variable
• Static variable
• Repetition control variable on a DO loop

OPS/REXX supports all values for setting except:

!

Inhibit host command execution

?

Control interactive tracing

n or -n

Set interactive trace counts

S

Scan trace (without execution)

Unlike standard REXX, program lines consisting solely of comments do not appear in OPS/REXX trace output.