The awk command can make it easy to remove duplicate characters from a string even when those characters aren’t sequential, especially when the process is turned into a script. First, the awk command ...

Awk does a lot more than select a column from a file or an input stream. It can select columns from selected rows. It can calculate totals, extract substrings, reverse the order of fields and provide ...

awk does a lot of common work for you when you use it to process text files. It reads files a record at a time. Normally, a record is a single line. Then it splits the line on fields using whitespace, ...

AWK is a pattern-scanning and processing language that searches one or more files for records (usually lines) that match specified patterns. It processes lines by performing actions, such as writing ...

I've used command lines at the prompt, but I never, ever trust someone who makes a big show of typing them from memory. For every time they get it right, they screw something up in their pointless ...

Computerworld is undertaking a series of investigations into interesting programming languages. In the past we have spoken to Larry Wall, creator of the Perl programming language, Don Syme, senior ...