I just wrote my first e-book ever about AWK one-liners. AWK one-liners are programs that fit on one line and do one thing, such as, numbering lines, printing certain lines, finding sums, etc. The book is 50 pages long and contains 70 well explained one-liners.

The awk file can be modified to include a BEGIN section and an END section that allows you to perform tasks before and after the records are processed.

When you use awk with operators levels, comparisons and ranges can be part of the data search.

awk supports user defined variables as well as variables that are predefined. These variables do not need to be declared like they do in bash scripts. There are three types of variables.

There are times when you will want to trim some information from the output of a command. This may be because you want to feed that output into another command. Whatever the reason for wanting to manipulate the output, awk is one of many tools available in GNU/Linux to perform this task.

"This is the second part of a three-part article on the famous Awk one-liners. This part will explain Awk one-liners for text conversion and substitution..."

"...This is going to be a three-part article in which I will explain every single one-liner in Mr. Pement’s compilation. Each part will explain around 20 one-liners. If you follow closely then the explained examples will turn you into a great Awk programmer..."

Perl and Bash ports of our newbie program to convert binary numbers to decimal. Code written for ease-of-reading, where possible. If you don't script already; start! :)