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, ...

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 ...