Get the latest tech news
Advanced Bash-Scripting Guide
10 Mar 2014 This tutorial assumes no previous knowledge of scripting or programming, yet progresses rapidly toward an intermediate/advanced level of instruction . .
This tutorial assumes no previous knowledge of scripting or programming, yet progresses rapidly toward an intermediate/advanced level of instruction. It serves as a textbook, a manual for self-study, and as a reference and source of knowledge on shell scripting techniques. This book is suitable for classroom use as a general introduction to programming concepts.
Or read this on Hacker News