Unix in a Nutshell, 4th Edition
Arnold Robbins
sed & awk, 2nd Edition
Dale Dougherty & Arnold Robbins
UNIX Power Tools, 3rd Edition
Mike Loukides & Jerry Peek, Shelley Powers, Tim O’Reilly
Learning the vi and Vim Editors
Arnold Robbins, Elbert Hannah & Linda Lamb
lex & yacc, 2nd Edition
Doug Brown, John Levine & Tony Mason
Classic Shell Scripting
Arnold Robbins & Nelson H. F. Beebe
Learning the bash Shell, 3rd Edition
Cameron Newham
Essential System Administration, 3rd Edition
Æleen Frisch
bash Cookbook
Cameron Newham & Carl Albing, JP Vossen