Getting started with the Linux cat command
Cat is a fairly simple tool designed to concatenate and write file(s) to your screen, which is known as standard output (stdout). You can expect...
Manage multiple service instances with systemctl
Services, services, services. A service is a huge part of computing. You're reading this article on a service. Your computer is running services. The internet...
Ten moments that shaped Linux
This article was originally posted on opensource.com. It's been updated and is published here with the author's permission. In August 2018, Opensource.com posted a poll...
Intro to the Linux chgrp and newgrp commands
In a recent article, I introduced the chown command, which is used for modifying ownership of files on systems. Recall that ownership is the combination...
Intro to the Linux chown command
Image by: Opensource.com CC-by-SA 4.0 Every file and directory on a Linux system is owned by someone, and the owner has complete control to change...
Intro to the Linux chmod command
Every object on your Linux system has a permission mode that describes what actions a user can perform on it. There are three types of...
Intro to the Linux useradd command
Adding a user is one of the most fundamental exercises on any computer system; this article focuses on how to do it on a Linux system.
Extend the life of your Linux SSD drive with fstrim
SSDs have benefits like silent and cooler operation and a faster interface spec, compared to their elder spinning ancestors. Of course, new technology brings with it new methods of maintenance and management. SSDs have a feature to reclaim unused blocks on the device.
Use lspci on Linux to see your hardware
Sometimes you need to identify the hardware in a system. One command used for this is lspci.
How to update a Linux symlink
UNIX and Linux users find many uses for links, particularly symbolic links. One way that I like to use symbolic links is to manage configuration backups of various IT equipment.
Getting started with the Linux cat command
Cat is a fairly simple tool designed to concatenate and write file(s) to your screen, which is known as standard output (stdout). The simplest use of cat is to show the contents of a file.
What’s in a name?
Computers have network addresses, but they’re usually difficult for humans to remember. Hostnames are labels intended to help humans refer to a specific computer.
Serial communication on Linux
Learn to use the ancient serial communications hardware and software methods that are needed even today in many data centers.