Batch file to delete half the lines of a text file at random?

Question

I need a way to use batch to look at every line of a text file, and delete half of the lines in that text file, choosing which lines to delete at random.

This is to simu

Answer 1

One way to do this would be to create simple files for each character. Then use a random script to do something like this:

set/a number=%random% * (number of people there are) / 32768 + 1
set status=dead
call person%number%.bat   (Each file should contain a set status=live script)
if %status% == live (
set/a peopletokill=%peopletokill%-1
del person%number%.bat
)
if %peopletokill% == 0 (
exit
)

Something like that could work.