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.

Creating and merging PDFs on Linux

Selectively reusing commands on Linux

Selectively reusing commands on Linux

Command history on Linux and Unix systems provides a lot more ways to rerun commands than you might know.

Smart ways to compare files on Linux

Smart ways to compare files on Linux

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.

Random identity generation in Linux

Random identity generation in Linux

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.

Factorials and unscrambling words with bash on Linux

Factorials and unscrambling words with bash on Linux

Solving problems with bash can be challenging, not just for us using Linux, but also for bash.

Serious 10-year-old flaw in Linux sudo command; a new version patches it

Serious 10-year-old flaw in Linux sudo command; a new version patches it

A vulnerability in sudo can elevate unprivileged users to root privileges.

Using the vim editor in Linux to quickly encrypt and decrypt files

Using the vim editor in Linux to quickly encrypt and decrypt files

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.

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.

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