I wrote two e-books to teach everyone awk and sed: awk one-liners explained http://www.catonmat.net/blog/awk-book/ http://www.catonmat.net/blog/awk-book/ sed

I wrote two e-books to teach everyone awk and sed: awk one-liners explained http://www.catonmat.net/blog/awk-book/ http://www.catonmat.net/blog/awk-book/ sed one-liners explained http://www.catonmat.net/blog/sed-book/ http://www.catonmat.net/blog/sed-book/ Check them out if you want to become proficient at shell scripting!