I love Paul Sheer's "LINUX: Rute User's Tutorial and Exposition" [1] It is about much more than just the shell, but you can stop whenever you want. That was my

I love Paul Sheer's "LINUX: Rute User's Tutorial and Exposition" [1] It is about much more than just the shell, but you can stop whenever you want. That was my "free" book recommendation, if you want to buy a "regular" book, then "The Unix Programming Environment" [2] can't be beat. You can find a dirt cheap "low cost edition", or buy it second hand online. [1] http://rute.2038bug.com/index.html.gz http://rute.2038bug.com/index.html.gz [2] http://cm.bell-labs.com/cm/cs/upe/ http://cm.bell-labs.com/cm/cs/upe/