Lisp to make cuts along a line

[Mohamed_Essam_2000]

I need a LISP to make a number of cuts of a particular length along the selected line. 

The first cut will be at the start of the selected line, the second cut will be at the end of the line, and the rest of the cuts will be distributed equally along the line.

It will be better if the LISP allows multi-selection and prompts the number & length of cut.

The attached picture indicates the drawing required.

[Steven P]

You could look at chainage LISPs to put a circle at the correct interval, and use these to trim the line?