Sandra Henry-Stocker
Unix Dweeb
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Opinions expressed by ICN authors are their own.
Sandra Henry-Stocker has been administering Unix systems for more than 30 years. She describes herself as "USL" (Unix as a second language) but remembers enough English to write books and buy groceries. She lives in the mountains in Virginia where, when not working with or writing about Unix, she's chasing the bears away from her bird feeders.
The opinions expressed in this blog are those of Sandra Henry-Stocker and do not necessarily represent those of IDG Communications, Inc., its parent, subsidiary or affiliated companies.
A guided tour of Linux file system types
Linux file systems have evolved over the years, and here's a look at file system types
Keeping track of Linux users: When do they log in and for how long?
Getting an idea how often your users are logging in and how much time they spend on a Linux server is pretty easy with a couple commands and maybe a script or two.
How to manipulate PDFs on Linux
The pdftk command for Linux systems provides many options for working with PDFs, including merging pages, encrypting files, applying watermarks, compressing files, and even repairing PDFs.
How to manage logs in Linux
Log files on Linux systems contain a LOT of information — more than you'll ever have time to view. Here are some tips on how you can make use of it without ... drowning in it.
Getting help for Linux shell built-ins
Linux built-ins are commands that are part of a user’s shell. Sandra Henry-Stocker explains how to recognize them and get help on their use.
Mastering user groups on Linux
Managing user groups on Linux systems is easy, but the commands can be more flexible than you might be aware.
Will rolling into IBM be the end of Red Hat?
IBM's acquisition of Red Hat is a big deal -- a $34 billion big deal -- and many Linux professionals wonder how it's going to change Red Hat's role in the Linux world. Here are some thoughts.
Linux a key player in the edge computing revolution
Edge computing is augmenting the role that Linux plays in our day-to-day lives. A conversation with Jaromir Coufal from Red Hat helps to define what the edge has become.
Undo releases Live Recorder 5.0 for Linux debugging
Debugging on multi-process systems just got significantly easier with the release of Live Recorder 5.0 from Undo.
Tracking down library injections on Linux
Library injections are less common on Linux than they are on Windows, but they're still a problem. Here's a look at how they work and how to identify them.
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.
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.
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.
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.
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...
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.
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.
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.
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.
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