# System Variables

GID | Operating System Process Identifier

String System Variable

## Contents

String, two-character OS process identifier

## Description

The GID variable can be used to obtain a two-character 16-bit binary operating system group or Process ID (PID).

## See Also

SYS( ) Invoke Operating System Command

## Example

Obtain the 16-bit UNIX Process ID by using:

> pid=dec($00$+gid)
> ?pid
> 30633

For larger values (e.g. 32-bit), see TCB(89), which returns the numeric value of the current PID. Use this as a replacement for DEC($00$+GID) to retrieve the current PID value.