These books are free to download and will help you mentoring your shell scripting skills. No matter you are experienced or newbie you must have these handy documents with you if you are in the field of Linux.
![[PDF] Hacking: The Art of Exploitation, 2nd Edition - Download Book](https://i.pinimg.com/originals/07/0e/ff/070eff5db1f4437d6c778d386532c6fa.png)
