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 ...

I love chaining commands as much as anyone, and sed, awk, grep, and perl are some of my best friends. However, remember that, in *nix, each command runs in its own process, the resources required for ...

The purpose of this article is to demonstrate that real programs can be and are written using the AWK programming language. When I first started working with UNIX, going back 10 years now, no one I ...

The first command we’ll examine in this post is a very unusual awk command that systematically removes every line in the file that is encountered more than once. It leaves the first instance of the ...

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, ...

Many years ago, probably close to 20, a regular point was made on the comp Usenet newsgroups about using the minimum tool to get the job done. That is, someone would ask for a quick and dirty way to ...

Can a curious Windows user find a Linux version without command lines, because I can’t find one that has 100% GUI. Is it because of techno snobbery, as in, you’re only allowed in if you learn command ...