Don't forget http://www.linuxdoc.org. You'll find
linuxdoc's collection of guides, HOWTOs, FAQs and man-pages to be invaluable.
Be sure to check out Linux
Gazette and LinuxFocus as well.
The Linux System Administrators guide, available from Linuxdoc.org's "Guides" section,
is a good complement to this series of tutorials -- give it a read! You may
also find Eric S. Raymond's Unix
and Internet Fundamentals HOWTO to be helpful.
In the Bash by example article series, we show you how to use bash programming constructs
to write your own bash scripts. This series (particularly parts one and two) will be excellent additional preparation
for the LPIC Level 1 exam:
We highly recommend the Technical
FAQ for Linux users by Mark Chapman, a 50-page in-depth list of
frequently asked Linux questions, along with detailed answers. The FAQ itself
is in PDF (Acrobat) format. If you're a beginning or intermediate Linux user,
you really owe it to yourself to check this FAQ out. We also recommend Linux
glossary for Linux users, also from Mark.
If you're not too familiar with the vi editor, we strongly
recommend that you check out IBM's Vi
-- the cheat sheet method tutorial. This tutorial will give you a gentle
yet fast-paced introduction to this powerful text editor. Consider this
must-read material if you don't know how to use vi.