Bash One-Liners Explained
http://www.catonmat.net/blog/bash-one-liners-explained-part-one/
bashのワンライナー5題。
Part I: Working with files
Part II: Working with strings
Part III: All about redirections
Part IV: Working with history
Part V: Navigating around
なんか本にするのに書いているみたい。