This review is from: Linux Shell Script Programming (Paperback)
This is prehaps the greatest text on Linux shell scripting. Yes, it's old, but don't let that confuse you... this is THE classic text on Linux scripting.
Its style is unique. It takes you through baby steps... a few lines at a time... so that you start with very simple scripts... and they build and build. I cannot rate this highly enough.. it needs 6 stars.
I've been looking for this book for some 2 years ... as it had gone out of print. Luckily it's back... as the other alternative was to steal it from the library. YES, it's that good... you'd have to tell the library you'd "lost" it. Luckily though, you can legally buy your own copy, without invoking the wrath of Librarian... as they'd know you had it on your bookshelf at home.