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WATCH

WATCH

Suspends execution when the value of a specified variable changes

Category: Manipulating Debugging Requests

Alias: W

Syntax
Arguments
Details
Examples

Syntax

WATCH variable(s)

Arguments

variable: specifies a DATA step variable.

The WATCH command specifies a variable to monitor and suspends program execution when its value changes.

Each time the value of a watched variable changes, the debugger:

suspends execution
displays the line number where execution has been suspended
displays the variable's old value
displays the variable's new value
returns control to the user and displays the > prompt.

Monitor the variable DIVISOR for value changes:
```
w divisor
```

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