Linux in a Nutshell
Ellen Siever & Stephen Figgins & Robert Love & Arnold Robbins
Learning the vi and Vim Editors
Arnold Robbins & Elbert Hannah & Linda Lamb
Classic Shell Scripting
Arnold Robbins & Nelson H. F. Beebe
Effective awk Programming
Arnold Robbins
Learning the bash Shell, 3rd Edition
Cameron Newham
Linux System Programming
Robert Love
UNIX Power Tools, 3rd Edition
Jerry Peek, Shelley Powers, Tim O’Reilly & Mike Loukides
Mastering Regular Expressions, Third Edition
Jeffrey E. F. Friedl
Introducing Regular Expressions
Michael Fitzgerald
sed & awk, 2nd Edition
Dale Dougherty & Arnold Robbins
Learning GNU Emacs, 3rd Edition
Debra Cameron, & James Elliott & Marc Loy & Eric S. Raymond & Bill Rosenblatt
Linux Device Drivers, 3rd Edition
Jonathan Corbet & Alessandro Rubini & Greg Kroah-Hartman
grep Pocket Reference
John Bambenek & Agnieszka Klus
bash Cookbook
Carl Albing & JP Vossen