An associative array is an array which uses strings as indices instead of integers. To see how associative arrays work, we’re going to look at both the Korn shell and Perl, though only the newest ...

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 ...

A critical vulnerability in the free OpenSMTPD email server present in many Unix-based systems can be exploited to run shell commands with root privileges. The component is a free implementation of ...

Windows Terminal is also great for customization. You can change the appearance of the prompts, pick custom fonts, adjust ...

Linux Journal, representing 25+ years of publication, is the original magazine of the global Open Source community.

It used to be one of the joys of writing embedded software was never having to deploy shell scripts. But now with platforms like the Raspberry Pi becoming very common, Linux shell scripts can be a big ...

UPDATE, 9/25: The Bash vulnerability, now dubbed by some as "Shellshock," has been reportedly found in use by an active exploit against Web servers. Additionally, the initial patch for the ...

At times, we need to write shell scripts that are interactive and user executing them need to monitor the progress. For such requirements, we can implement a simple progress bar that gives an idea ...

So, we have a shell script that starts james (the JAVA mail server). I was alerted to the fact that despite the script being the last line in rc.local, it wasn't starting on boot. So, I went to the ...

One of the most convenient ways to manipulate information in scripts is to store it in an array. Arrays facilitate looping through lists of related values, keeping track of an ever changing number of ...