Delete Exactly 90 Per Cent of the Files in a Directory

[whydoihavetoregister]

Hi there,

I wonder how to delete exactly 90 per cent of the files RANDOMLY in a given directory.

The lines below show how to delete appoximately 90 per cent of the files given as arguments. But what I need is an exact solution.

#!/bin/bash
while [ $# -gt 0 ]
do
 if [ 0 -ne $[ ( $RANDOM % 10 )] ]
 then
  rm $1
 fi
 shift
done

Any sript is welcome! And please, do not ask why! This is no joke.

[wje_lf]

HIdden files also, or not?

And do we include . and .. in the count of files?

[whydoihavetoregister]

HIdden files also, or not?

And do we include . and .. in the count of files?

I don't care because there are no hidden files (except ./. and ./.. which I don't want to delete)!