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subodhsoni

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"Linux and Unix "

I would like to know the technical differences between "linux" and "unix".Like how do they differ in their implementations,functions and etc. etc..I don't want to know that linux is free and unix is not.i want the exact points as to linux is different than unix.
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rbr

The question can^t be answered since you have to tell me what unix is!!!
linux is not more different from unix than for example AIX. There exits many different flavours of unix and one of them is linux. Linux has full appility of the unix world.
Linux is flavour of unix based on BSD style,It is aPOSIX
compliant flavour
One big different in linux versus most flavors is its filesystem, ext2. Others use various filesystems, not all as effecient as ext2. Not much difference not counting the commands though, Un*x and Linux are like two models of a car, same underlying mechanics, just different ways of being marketed and sold.
Linux is open-source. You can modify the source code if competent.

(so is OpenBSD, etc.)

AIX, Dec Ultrix, Solaris, HP-UX are not.

Using the car metaphor, Linux is a car where you can open the hood and tune/mess with it yourself, whereas commercial versions of UNIX are like cars with hood sealed, and must be serviced by a dealer.
Linux is not built on the System V release 4 like HP-UX, Solaris, etc.   It was built from the ground up to behave like Unix.  That is one major difference between the two.
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sjmoore

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