Typical places on your Linux computer to find documentation and help:
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/usr/doc/
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/usr/local/doc/
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/usr/src/linux/Documentation/ [mostly OS and hardware related]
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Shell command: "man -k query-string" or "man command-name"
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Shell command: "info" or "info command-or-subject-name"
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Shell command: "help shell-command-or-subject-name"
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Shell command: "rpm -qi package-name" or "rpm -qia" (for all packages)
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Emacs command: "M-x info" ("Meta" or "Alt" key and "x" key, then enter "info")
The most important documentation sources:
Other important documentation:
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Linux Fact Sheet
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FAQs:
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HOWTOs and mini-HOWTOs:
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Manual pages (man pages):
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Manual pages (man pages)  at SSC.
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TkMan  Dec'97 LG
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Writing man pages:
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Man Page mini-HOWTO  How to write man pages.
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Read the man(7) man page with "man 7 man" (or M-x man ^m man(7) in Emacs).
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Use an existing man page as a template and modify as needed, using man(7) only as needed.
Look at several before choosing one. There is more variety than one might think.
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RFCs  There is a large amount of information in the form of RFCs (Requests For Comments).
There are several search sites listed at the linked site.
Other general documentation:
Last Modified 01-Mar-1999
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