Why Virus not much effect in Linux?

so,
New topic is that as we know that virus does not effect in linux. but do you know why?

let me tell you..
virus is onw type of application and its file format is .com, .bat or .exe..
its windows execution file format extensions.

while, in linux, these extensions does not support..

virus is a application which is affect in registry and system files of windows. and than, our operating settings is changed.... and we wish that virus has affect our system so let use linux..

but, if the software developer crate a virus with the linux fat extension
than, the same problem may exists in linux software... than what will you do?

so, over all, virus is only a application by its, you have to aware with the virus file and should know that what is the effect of virus...

some time, our task bar is disabled or some another program does not work.. coz virus delete the file or link to the file...


Thanks