Unix as a Second Language
Exploring /run on Linux
There's been a small but significant change in how Linux systems work with respect to runtime data. Here's an overview of the change to /run.
06/17/2019
How to send email from the Linux command line
Linux offers several commands that allow you to send email from the command line. Here's look at some that offer interesting options.
06/14/2019
How Linux can help with your spelling
Whether you're struggling with one elusive word or checking a report before you send it off to your boss, Linux can help with your spelling.
06/06/2019
NVMe on Linux
In case you haven't yet noticed, some incredibly fast solid-state disk technology is as available for Linux as it is for other operating systems.
05/29/2019
A deeper dive into Linux permissions
Sometimes you see more than just the ordinary r, w, x and - designations when looking at file permissions on Linux. How can you get a clearer view of what the uncommon charactrers are trying to tell you and how do these permissions...
05/27/2019
4 vulnerabilities and exposures affect Intel-based systems; Red Hat responds
Red Hat issued a security advisory on recently disclosed CVEs (common vulnerabilities and exposures) in Intel microprocessors.
05/15/2019
When to be concerned about memory levels on Linux
Memory management on Linux systems is complicated. Seeing high usage doesn’t necessarily mean there’s a problem. There are other things you should also consider.
05/13/2019
Red Hat Summit 2019: RHEL 8 arrives
At Red Hat Summit 2019, Red Hat announced the availability of Red Hat Enterprise Linux (RHEL) 8, with support for the Red Hat Container Toolkit, and the Universal Base Image.
05/07/2019
Looking into Linux modules
The lsmod command can tell you which kernel modules are currently loaded on your system, along with some interesting details about their use.
05/01/2019
How to identify same-content files on Linux
Copies of files sometimes represent a big waste of disk space and can cause confusion if you want to make updates. Here are six Linux commands to help you identify these files.
04/23/2019
How to identify duplicate files on Linux
Some files on a Linux system can appear in more than one location. Follow these instructions to find and identify these "identical twins" and learn why hard links can be so advantageous.
04/15/2019
Working with variables on Linux
Variables often look like $var, but they also look like $1, $*, $? and $$. Let's take a look at what all these $ values can tell you.
04/09/2019
How to quickly deploy, run Linux applications as unikernels
Unikernels are a smaller, faster, and more secure option for deploying applications on cloud infrastructure. With NanoVMs OPS, anyone can run a Linux application as a unikernel with no additional coding.
04/08/2019
How to manage your Linux environment
Linux user environments simplify your use of the system in many ways. Viewing your settings and modifying them can be tricky, though. Here’s how to do it.
03/29/2019
Tips for using the Ip command to print from Linux systems
The lp command on Linux systems provides numerous options for printing, such as multiple pages per sheet and page borders, but also just a few quirks to keep you on your toes.
03/25/2019
Printing from the Linux command line
There's a lot more to printing from the Linux command line than the lp command. Check out some of the many available options.
03/20/2019
How to configure a static IP address on Linux
When you need a Linux system to have a static IP address rather than one that is set dynamically, all that's required is some configuration changes and a restart. Follow these steps to make the switch.
03/05/2019
Cryptocurrency miners exploit Docker flaw
A container flaw discovered just last month has been exploited by hundreds of attackers, including cryptocurrency miners, cybersecurity company Imperva says.
03/05/2019
Linux security: Cmd provides visibility, control over user activity
Cmd helps organizations monitor, authenticate, and block user activity that goes beyond expected Linux system usage.
02/26/2019
How to identify shell builtins, aliases and executable files on Linux systems
Learn what a shell "builtin" on a Linux system is, as well as what commands identify builtins and allow you to retrieve useful information about your working environment.
and how to determine if a command is one or if s Let's...
02/21/2019
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