sed & awk, 2nd edition by Dale Doherty and Arnold Robbins Following are the corrections made in the 4/00 reprint: Here's the key to the markup: [page-number]: serious technical mistake {page-number}: minor technical mistake : important language/formatting problem (page-number): language change or minor formatting problem ?page-number?: reader question or request for clarification {53} The gres command in the middle of the page used to read: .Se 00 "Appendix" It now reads: .Se 00 "Full Program Listings" {58} Figure 4-1 shows a script. The first line of the script now ends with a slash "/" <157> The following text was added to the top of the page: you'd want to make to this program to improve it, and refining a program takes much longer. The point is that with awk, you are able to isolate and implement the basic functionality quite easily.