what are the difference between linux and dos?
please tell me.

You should really ask what are the similarities apart from the fact that both are OS's

I just looked at you posting history. Do you ever intend to make more than the initial post to a thread you start?

Linux is based on Unix and DOS isn't. We seem to be having a spate of these....

linuxquestions.org = indian google :P

In short, Linux and DOS have nothing in common.
Check en.wikipedia.org for articles about both of them.

And to make it more funny there once Pcdos , Qdos , Msdos

... and freedos

Ditto.....

kamal;
You have a perfect record of posting a random question and never responding with follow-up. I strongly suggest that you stop this---otherwise we might conclude you are just trolling us.

This is an easy one!!!

Get the source code for dos and put it in a file named "dos".
Linux source code---->"linux"

Open a terminal and run "cmp -b dos linux"

You can also do this with the binaries:
"cmp -b dos linux|hexdump -C"

Actually, wasn't there some heritage from Unix to DOS? Unix came first, so it would be hard to write DOS without peeking.....

amazing what you can find with Google by searching for 'DOS vs Linux'

You could have added that most people would judge that there is hardly a good question amongst them. This one doesn't have much of an answer, except that they are different.

There are some that should be obvious to anyone who knows anything about the background {those last two are indeed two threads, though they sound similar}).

And there is It should be possible to google for this, although you'd have to know the right words, and that is probably easier to forgive.

Then there is At best, this is inept, although, I guess you can argue that most people have phases of ineptitude amongst the good stuff. (If anyone actually wants to point out the good stuff, in this case...)

http://letmegooglethatforyou.com/ is both awesome, genuine and useful. And I am well aware that both does not mean three things.

In this case, we need http://allow_me_to_tie_your_shoelaces_for_you.com

I will get started on this as soon as I finish my chores.....

Bah. Mine was a real page, yours wasn't. I want my click back.