To disable verify temporarily in a COM-file (no echo) use: $ vf='f$verify(0)' ... $ if vf then exit 1+f$verify(1) $ exit 1 or: $ vf='f$verify(0)' ... $ exit 1+0*f$verify(vf) or: $ vf='f$verify(0)' ... $ exit 1 .or. f$verify(vf)