check-dx command

The check-dx BASIC program looks through every file on the system to find and identify those that have a dx, dy, or dl in attribute 1 of the D-pointer. The dx and dy files are not saved by the save processor.

For Windows: Not Supported

After issuing the command, the prompt below displays:

Enter machine type (that is, Production, Development):

Any response may be provided at this prompt. The response is placed in the heading statement on output.


options l Checks for dl-type files.
x Skips dx-type files.
y Checks for dy-type files.


Enter machine type: Demo
Files on Demo With DX-type File Pointers
file-of-files <---- file pointer is DX’ed
1 file found with a DX file pointer.