u can do the same with *.bat files nyway those r not real viruses those r glitches of the windows system n hey linux does not have a directory called linux heh, it has a directory called "root" n no one can delete the root when he/she is running the system(this applies to windows too) u can't delete the windows folder completly if u r running it!!..n files on da linux partition(in ext3,ext2 or ext1 format) r not shown in windows..coz windowz doesn't support ext3 file format
if u really wanna make a virus see "rootkits", which i think was submitted here too. nyway new viruses do not show them selves, they always try to be on undercover.
if u really want to make a detructive program from this what u need to do is to create a bootable disk or a startup disk and set the *.cmd file to load at startup. Do ing this will cause all of ur files to be deleted(files which r on MSDOS supported partitions)