Lot's of documentation is available on the net, on your system and in the form of printed books. Start looking at the manpages and infopages on your system. If you have GNOME installed, you can use the Helper app to browse through them.
Also look under /usr/doc - its a directory filled with documentation for all the software installed on the system. In case you are using RHL, you might also have the GSG "Getting Started Guide" and the "GNOME User Guide" on your system.
One form of very good documentation is the set of HOWTO's which are installed under /usr/doc. They are also available from the LDP "Linux Documentation Project" website at http://www.linuxdoc.org This place is fantastic - you will find all kinds of docmentation for almost everything that one needs to know in order to use GNU/Linux effectively.
SameerDS.
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