IBM developerWorks: Awk by example, Part 3Apr 07, 2001, 14:00 (0 Talkback[s])
(Other stories by Daniel Robbins)
[ Thanks to Kellie for this link. ]
"In this conclusion to the awk series, Daniel introduces you to awk's important string functions, and then shows you how to write a complete checkbook-balancing program from scratch. Along the way, you'll learn how to write your own functions and use awk's multidimensional arrays. By the end of this article, you'll have even more awk experience, allowing you to create more powerful scripts."
"While awk's print statement does do the job most of the time, sometimes more is needed. For those times, awk offers two good old friends called printf() and sprintf(). Yes, these functions, like so many other awk parts, are identical to their C counterparts. printf() will print a formatted string to stdout, while sprintf() returns a formatted string that can be assigned to a variable. If you're not familiar with printf() and sprintf(), an introductory C text will quickly get you up to speed on these two essential printing functions. You can view the printf() man page by typing 'man 3 printf' on your Linux system."