Operating Systems

Operating Systems | News, how-tos, features, reviews, and videos

feature

AI will drive more workforce expansion for tech pros than reduction, Linux Foundation reports

The big takeaway from this year's Linux Foundation tech talent report is that despite fears of layoffs, jobs are being created, with particular growth in jobs requiring AI. In addition, there are still significant talent shortages in cybersecurity, c

By Maria Korolov
Jul 28, 2025 9 mins
Careers Cloud Computing Operating Systems
news

CompTIA updates Linux+ certification

The revamped certification reflects expanded know-how with AI, automation, cybersecurity, and DevOps.

By Denise Dubie
Jul 24, 2025 3 mins
Careers Certifications Operating Systems
how-to

Parameter expansion on Linux

Parameter expansion requires a bit of practice, but it can be very useful once you’ve become familiar with its many applications.

By Sandra Henry Stocker
Jun 23, 2025 4 mins
Operating Systems
Image
video

Master Linux Math with the bc Command | Easy CLI Calculations Explained!

Learn how to use the powerful bc command in Linux to perform fast, accurate calculations right from the command line. In this Linux tip, Sandra Henry-Stocker—author of the Unix as a Second Language blog—walks you through examples including additi...

Jun 23, 2025 1 mins
Operating Systems
Watch Video
how-to

Essential commands for Linux server management

Planning to manage a Linux server? Here are the commands a Linux sysadmin needs to know.

By Sandra Henry Stocker
Jun 17, 2025 6 mins
Operating Systems
Image
video

Master Linux Math in Seconds: How to Use the expr Command Like a Pro

Want to perform quick math right from your Linux terminal? In this Linux tip, Sandra Henry-Stocker (author of the Unix as a Second Language blog on NetworkWorld) breaks down the expr command—a powerful way to do basic arithmetic like addition, subt...

Jun 17, 2025 1 mins
Operating Systems
Watch Video
opinion

Why people love Linux

The open source community encourages a lot of people to contribute, and the variety of Linux distributions means you’re likely to find many options that fit your needs.

By Sandra Henry Stocker
Jun 13, 2025 3 mins
Operating Systems
Image
video

How to Do Math in the Command Line Using Double Parentheses

In this Linux tip, Sandra Henry-Stocker—author of the Unix as a Second Language blog—shows you how to perform basic math right in the Linux command line using double parentheses syntax $(( )). Learn how to add, multiply, divide, and use multiple ...

Jun 6, 2025 1 mins
Operating Systems
Watch Video
how-to

Understanding devices on Linux systems

Devices can be character devices (like keyboards and serial ports), block devices (such as hard disks and USB devices), network devices and virtual devices.

By Sandra Henry Stocker
Jun 4, 2025 6 mins
Operating Systems
how-to

Many ways to use the date command on Linux

The date command on Linux can do more than display the current date and time. For example, it can provide dates in the past and future and adjust the date output to suit your need for details.

By Sandra Henry Stocker
May 27, 2025 4 mins
Operating Systems