Video tutorials: Linux Tutorials - Jason Wertz
Video tutorials: Linux Commands For Beginners - JtheLinuxguy
Video tutorials: Tips & Tricks - JtheLinuxguy
Video tutorials: Linux - Howto - Kris Occhipinti
Video tutorials: BASH Basics - Kris Occhipinti
Video tutorials: BASH Playlist #2 - Kris Occhipinti
Video tutorials: BASH - Kris Occhipinti
Book: Bash Reference Manual - GNU
Book: The Linux Command Line - William Shotts
Website: The Definitive Guide to Bash Command Line History - Peteris Krumins
Website: Bash One-Liners Explained, Part I: Working with files - Peteris Krumins
Website: Bash One-Liners Explained, Part II: Working with strings - Peteris Krumins
Website: Bash One-Liners Explained, Part III: All about redirections - Peteris Krumins
Website: Bash One-Liners Explained, Part IV: Working with history - Peteris Krumins
Website: Bash One-Liners Explained, Part V: Navigating around - Peteris Krumins
Website: Working Productively in Bash's Vi Command Line Editing Mode - Peteris Krumins
Website: Bash Emacs Editing Mode Cheat Sheet - Peteris Krumins
Website: A Unix Utility You Should Know About: Pipe Viewer - Peteris Krumins
Video tutorials: Introduction To Bash Scripting - JtheLinuxguy
Video tutorials: Shell Scripting Tutorials - Madhur Bhatia
Video tutorials: Bash Scripting for the Web - Programmers Institute
Book: Bash Guide for Beginners - Machtelt Garrels
Book: Advanced Bash Scripting HOWTO - Mendel Cooper
Website: The Bash-Hackers Wiki
Website: Steve's Bourne / Bash shell scripting tutorial - Steve Parker