Advice for everyday Unix systems administration and some clever ways to approach more challenging problems.
Here's an introduction to Homebrew, an easy but unusual package manager that works with both Linux and macOS.
Fedora has been recognized as a "digital public good" by an international organization focused on promoting a more equitable world.
The ethtool utility provides information about your network-driver and interface-card settings, including speed, whether the interface uses auto-negotiation, and whether it runs in half- or full-duplex mode.
Swap space can play an important role in system performance. Learn how to determine how much swap space your system has available and how much it's being used.
The sleep and wait commands can provide useful ways to observe system and script activity.
The Linux set command offers a lot of interesting options for working with your scripts.
It's doubtful that even Linus Torvalds, the creator of the Linux kernel, imagined it would play such a major role in everything from supercomputers to tiny embedded devices.
If you don't love the shell you're using on your Linux system, change it! There are plenty, including bash, fish, ksh, tcsh, zsh.
The /etc/shadow contains a lot more information than usernames and password hashes. It includes, among other things, the hashing algorithm that is used.
The cut command offers many ways to extract portions of each line from a text file. It's similar to awk in some ways, but it has its own advantages and quirks.
The awk command provides a lot more than simply selecting fields from input strings, including pulling out columns of data, printing simple text evaluating content – even doing math.
Systemd and the systemctl command play vital roles in most of today's Linux systems. This post explains commands for peering into some aspects of how they work.
Here are easy ways to list upgrades available for installed packages on Fedora, Ubuntu and related Linux systems.
The dnf command can uncover a wealth of information about what file packages are installed on Fedora and related systems
If you've never looked into the availability of free fonts for Linux, you've got a big surprise coming. There are many thousands of uniquely appealing fonts, and adding them to your system is very easy.
When we run into a serious problem that threatens our ability to get our work done, it just might be time to rethink what "backing up" should involve.
It's not hard to look up configuration details on your Linux system. The hard thing is wrapping your brain around how many are available and what they can tell you.
Here are eight Linux commands for looking into binary files and viewing details about what executables are doing when they run.
The sar command can provide detailed system metrics on just about every aspect of system performance. You can query it on as as-needed basis or set it up to provide daily reports.
When a Linux user finds his system nearly out of disk space and unwilling to save files, fellow Linux users online provide a solution.
The where, whereis and whatis commands summarize commands, show where executables are, and point to relevant man pages.
Bash provides some handy techniques for troubleshooting bash scripts, and they're very easy to use.
You can examine the contents of compressed files on Linux systems without uncompressing the files or changing them in any way. This post explains the commands for doing that and the types of compressed files they work with.
Gimp is normally used to create or manipulate images files, but can also work with PDFs if you understand how it works and what it's limits are.
Linux has many tricks that can reduce the number of keystrokes it takes to type in commands. Here are six of them.
Setting up the most useful aliases on Linux is a mix of what's otherwise annoying to enter, hard to remember or typed way too often.
Red Hat has outlined how it can bundle existing and new features to better support edge networks, an effort it calls Red Hat Edge.
You can make accessing some applications on Ubuntu quite a bit easier by adding them to the dock. In this post, we look at how you can manipulate the dock -- adding applications, changing the size of its icons and even moving it to a different locati....
Here are five Linux commands that can verify connection speeds, analyze delays, and test whether other systems are reachable.
Ubuntu gives you control of what files show up on your desktop – even if they're not in your Desktop folder.
There are many ways to get help while working on the Linux command line. Here are details on some of the most useful.
Sometimes a new way of getting work done on the Linux command line can be both interesting and time-saving
A couple of simple Linux commands can provide a lot of information about the systems and devices attached to your network.
File systems and UUIDs have a special relationship on Linux systems. What are these very long identifiers and how can you view the connections between them and disk partitions?
If you're not yet comfortable with writing scripts on Unix and Linux systems, this post might get you off to a healthy start.
Linux systems offer a lot of choices when it comes to generating, converting or merging PDF files. This post examines some easy-to-use options.
Command history on Linux and Unix systems provides a lot more ways to rerun commands than you might know.
Many new tools for comparing files have emerged in Linux over the years. In this post, we'll examine seven very useful tools for doing that.
Generating a list of names, addresses and phone numbers can be very easy when you know what tools to use. Let's take a look at the rig command.
Solving problems with bash can be challenging, not just for us using Linux, but also for bash.
A vulnerability in sudo can elevate unprivileged users to root privileges.
Most Linux users know vim as a text editor that descended from vi. It can also function as a tool for encrypting text files. In this post, we examine how this is done and how to reverse the process.
Linux systems provide a lot of useful commands for reviewing network configuration and connections. Here's a look at a few, including ifquery, ifup, ifdown and ifconfig.
The lslogins command can help you look into details of user accounts and login activity
The expect command can make running scripts a lot easier, especially if you need to run them repeatedly or when you're at home asleep.
In Linux, the arp and ip neigh commands provide easy ways to check your local network.
Linux has a wealth a powerful tools to make working with it easier and more productive, and here are some tips for taking advantage of them.
Wikit is a clever command for running Wikipedia searches from the Linux command line. It can help you run searches and save the output in text files. Take a look at how easily it works and learn what you need to know to get the content that you'....
The arping command can ping local systems to find out whether they are responsive, and with the help of scripts, can ping specific IP-address ranges.
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