"If I am asked which is one of the most important strengths of
GNU/Linux, then I would tell you that it is the documentation. That
is right! What makes GNU/Linux such a pleasure to use is the
excellent documentation that is included with it for each and every
tool bundled with it. Just try learning to use iptables without
reading the documentation even once, and you will get the idea. The
documentation in Linux is available in a variety of formats--as man
pages, info, HTML pages, postscript and in some cases even pdf.
These documents are so good that many a times when I have asked
questions in the past in various forums and Linux chat rooms, I
have often got the now popular RTFM reply which means Read The Fine
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