The book is aimed at all users and systems administrators of linux and every unix variant, including most importantly the MacOS. If you already know some scripting, you should be quite at ease here. Taylor does decide to restrict his discussion to the Bourne shell and its descendent, bash. He drops the C shell! But, as he points out, the scripts he gives can be easily rewritten in the latter if you desire.
The book can be roughly divided into two parts. The first is essentially traditional scripting tasks. A user from 1988 would see original material here, but no qualitative surprises.
The second half of the book is more interesting. It centres on Web applications. For example, when running a Web server that uses CGI, Perl and C are often the choice for implementing logic. But sometimes you can get by with a simpler approach - using a Bourne shell. Taylor shows how to do this to make simple web pages, with images, even. Cool! Though this outlook lacks the full expressive power of generating dynamic pages via Java Server Pages/Servlets, these latter alternatives can be quite forbidding to learn. If you are already comfortable with sed, awk, grep [etc], you may want to try this approach, provided your web site is not too complex.
In summary, the web scripting approach suggested here may be the most distinctive and useful sections. Worth checking out.