Sandra Henry-Stocker

Unix Dweeb

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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.

Using vim to quickly encrypt and decrypt files

Examining network connections on Linux systems

Examining network connections on Linux systems

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.

Looking into Linux user logins with lslogins

Looking into Linux user logins with lslogins

The lslogins command can help you look into details of user accounts and login activity

Automating responses to scripts on Linux using expect and autoexpect

Automating responses to scripts on Linux using expect and autoexpect

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.

Checking network connections with arp and ip neigh

Checking network connections with arp and ip neigh

In Linux, the arp and ip neigh commands provide easy ways to check your local network.

2021 New Year's resolutions for Linux users

2021 New Year's resolutions for Linux users

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.

Searching Wikipedia on the Linux command line with wikit

Searching Wikipedia on the Linux command line with wikit

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...

Using the Linux arping command to ping local systems

Using the Linux arping command to ping local systems

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.

Creating your own cowsay messenger

Creating your own cowsay messenger

Want to add a personal image or company logo for using with cowsay? It's easier than you might think to become a cowsay Picasso.

Using pidof and pgrep to list process IDs

Using pidof and pgrep to list process IDs

The pidof and pgrep commands make selecting and using process IDs on the Linux command line painless.

Fetching Linux system details with screenfetch and neofetch

Fetching Linux system details with screenfetch and neofetch

Here's how to use screenfetch and neofetch tools to display some of the most important configuration information on your Linux system.

Many ways to sort file content on Linux

Many ways to sort file content on Linux

The Linux sort command has an impressive number of ways to sort, from alphanumeric to random. Here's a look at some of the more useful ones.

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