"Mark Sobell has set out to create a definitive learning manual
for shell usage on Linux. Covering exactly what the title would
suggest, this 'Practical Guide' is a referance for CLI (command
line interface) usage from Vim and Emacs to scripting and the
basics of C programming. Let's take a look at what's covered.
"When working with a thousand plus pages of reference material
my most immediate concern is indexing..."