Linux Command Line and Shell Scripting Techniques
Vedran Dakic & Jasmin Redzepagic
Wireless Hacking with Kali Linux
Hugo Hoffman
sed & awk
Dale Dougherty & Arnold Robbins
Linux iptables Pocket Reference
Gregor N. Purdy
The Complete Metasploit Guide
Sagar Rahalkar
The the Complete Metasploit Guide
Sagar Rahalkar & Nipun Jaswal