Unix as a Second Language
How to view information on your Linux devices with lshw
The lshw (list hardware) command on Linux systems provides a lot more information on system devices than most of us might imagine is available.
Using bash’s shopt builtin to manage Linux shell behavior
The shopt builtin offers 53 settings that can alter how bash behaves. Read this post and then refer to bash's man page to follow up on how these settings might work for you.
Using the Linux stat command to create flexible file listings
The stat command isn't only for looking at file details one file at a time. It can also be used to create file listings that contain just the information you want to see – with considerably more than an ls -l command.
Enhancing the Linux command line with aliases
Using bash aliases in Linux can save time and having to remember complex commands - and it can be fun, too.
11 ways to list and sort files on Linux
Linux commands can provide details on files and show options for customizing file listings, but can also reach as deeply into a file system as you care to look.
Managing process accounting on Linux
Process accounting can provide a lot of details that can help monitor user and system activity on Linux. Here's a look at how it works and what kind of data it provides.
Word game: Finding anadromes with Linux
Using Linux commands to find words that, when reversed, turn into other words turned out to be an enjoyable mental challenge. How many can you find?
Merging and sorting files on Linux
There are quite a few ways to merge and sort text files on Linux. The command to choose depends on your data and your preferences.
Linux dominates supercomputing
The Linux operating system runs all 500 of the world’s fastest supercomputers, which help to advance artificial intelligence, machine learning and even COVID-19 research.
Digging for DNS answers on Linux
Dig is a powerful and flexible tool for interrogating domain name system (DNS) servers. In this post, we’ll take a deep dive into how it works and what it can tell you.
Summarizing your command usage on Linux
With a modest string of commands, you can get a quick look at what commands you're using on your Linux system and how often.
Some easy choices for encrypting files on Linux
A lot of encryption tools are available for Linux systems. In this post, we look at some easy-to-use commands and a script for making the process even easier.
How to decipher Linux release info
Displaying and interpreting information about Linux releases is a bit more complicated than it might seem.
A trick to enable painless file extraction on Linux
Extracting files from archives isn't difficult, but it can be tedious, especially with all the archive naming conventions in use today. But you can make the task a little easier by putting everything you know about the process into a...
How to stress test your Linux system
Stressing your Linux servers can be a good idea if you'd like to see how well they function when they're loaded down. In this post, we'll look at some tools that can help you add stress and gauge the results.
How to assess user activity in Linux
In this post, we look at commands that Linux server admins can use to view user activity
How to loop forever in bash on Linux
Looping forever on the command line or in a bash script is easy. Coming up with the reasons why you want to interrupt an infinite loop and how you want to do that requires a little more effort.
5 ways to examine the content of files on Linux
How to use the cat, more, head and tail commands to look at the content of Linux files, not just text files.
How to find and remove broken symlinks on Linux
A symlink or "symbolic link" is a Linux file that simply points at another file. If the referenced file is removed, the symlink will remain but not indicate there's a problem until you try to use it. Here are some easy ways to find...
How to use tmux to create a multi-pane Linux terminal window
tmux is a terminal multiplexer – a tool that allows you to open multiple panes in a single terminal window and run separate commands in each of them. This post provides an introduction to tmux including how to navigate between the...
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