Few aspects of Unix system administration are more intimate than the relationship between the admin and their chosen shell. After all, the shell is the most fundamental interface to the system, the ...

In order to avoid this common mistake I often have my shell scripts prompt me for a yes or no answer before they proceed. The function described here is for doing that: asking a question and ...

I've recently written about using bash arrays and bash regular expressions, so here's a more useful example of using them to test IP addresses for validity. To belabor the obvious: IP addresses are 32 ...

You need to package up a bunch of files, send them somewhere, and do something with them at the destination. It isn’t an uncommon scenario. The obvious answer is to create an archive — a zip or tar ...

I wore the world's first HDR10 smart glasses TCL's new E Ink tablet beats the Remarkable and Kindle Anker's new charger is one of the most unique I've ever seen Best laptop cooling pads Best flip ...

It is easy to dismiss bash — the typical Linux shell program — as just a command prompt that allows scripting. Bash, however, is a full-blown programming language. I wouldn’t presume to tell you that ...

Have you been thinking about biting the bullet and learning Bash scripting? Or perhaps you're like me, and you're always looking for ways to improve. I have three tips that will improve every Bash ...

FFmpeg was designed as a cross-platform solution for video and audio recording, conversion, and streaming. Its About page describes the command-line tool as “the leading multimedia framework, able to ...

When a question like “How can a bash script tell you where it’s located?” pops into your head, it seems like it ought to be a very easy question to answer. We’ve got commands like pwd, but … pwd tells ...