HP 3000 Manuals

HP COBOL II/XL Quick Reference Guide

$SET 

The $SET command can be used to turn the ten compilation switches on or
off.

Syntax 

$SET [Xn={ON } [, Xr={ON }]...]
     [   {OFF} [     {OFF}]   ]
where Xn and Xr are compilation switches.  The ten software switches are
of the form, Xn, where n is an integer in the range 0 through 9.

MPE/iX 5.0 Documentation