UNIX Hierarchy

People who come into contact with the UNIX system are often told : "If you have trouble, see so-and-so, he's a guru", or "Bob there is a real Unix hacker". Often they are baffled by these appellations, and do not pursue the matter further. What is a "Unix Hacker ?". How does he differ from a "guru" ? To answer these and other questions, here is the UNIX HIERARCHY : beginner insecure with the conce

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