"Linux" is an computer operating system kernel commonly used in GNU/Linux operating system such as Debian and RedHat.
So, before we go any further, you better learn how to pronouce Linux, so here's the gaffer and chief kernel hacker, Linus Torvalds showing us—in his very own words (with Swedish/Finnish accent)—how to say Linux: torvalds-says-linux.wav (81kB).
"Hello, this is Linus Torvalds, and I pronounce Linux as Linux!"
Also in Sun AU format (40kB) and MP3 format (82kB)
This was recorded by Linus himself and should therefore be considered the canonical pronunciation to learn from. It can be said to be spoken right and correctly.