This is a collection of very basic shell scripts I found completely useless. The author presents the book in an advanced format, not giving much underlying information or hand-holding; however the information contained is very beginner level.The author David Taylor also has many bad habits in his scripting and tends to take a wordy approach. Many of the scripts Taylor advertises in his book can be compiled into a command or two on a single small line of code. For example why would you pipe a grep command to awk when awk has a more powerful search function than grep already built in?I did not find any advanced commands in his entire book. There were a couple very basic 'sed' and 'awk' commands but nothing which made me think anything about them was 'wicked cool'