# System Variables

RET | Operating System's Last Error Code

Numeric System Variable

## Contents

Integer, operating system error + 256

## Description

The RET variable returns an integer reporting the operating system's error code associated with the last operating call. PxPlus generates this value by adding 256 to the error code value in the ERR system variable.

## See Also

ERR Last System-Detected Error Value

## Example

print "RET = ",ret
RET = 258