"Unix Shells by Example truly fulfills the claim made in the
title: over 630 examples are in the book, plus another 60 in the
first appendix. If you want to learn shell programming, this book
is a must-have."
"The first chapter introduces the three major shells: the Bourne
shell, the C shell and the Korn shell... Chapter Two,... gives a
very useful explanation of regular expressions... Our friend grep
appears in the third chapter--the meaning behind the name, how it
works, and how to use it... Chapter Four covers sed, the
Streamlined Editor--again, replete with examples."
"The next three chapters describe awk--the history, the input
format, records and fields, patterns and actions, script files,
comparison expressions, variables, pipes, loops and arrays, to name
just a few topics. This section is quite extensive and very