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 multitail on Linux

Linux sudo flaw can lead to unauthorized privileges

Linux sudo flaw can lead to unauthorized privileges

Exploiting a newly discovered sudo flaw in Linux can enable certain users with to run commands as root despite restrictions against it.

Viewing files and processes as trees on Linux

Viewing files and processes as trees on Linux

A look at three Linux commands - ps, pstree and tree - for viewing files and processes in a tree-like format.

How the Linux screen tool can save your tasks – and your sanity – if SSH is interrupted

How the Linux screen tool can save your tasks – and your sanity – if SSH is interrupted

The Linux screen command can be a life-saver when you need to ensure long-running tasks don't get killed when an SSH session is interrupted. Here's how to use it.

3 quick tips for working with Linux files

3 quick tips for working with Linux files

Linux provides lots of commands for finding, counting, and renaming files. Here's a look at some useful choices.

How to remove carriage returns from text files on Linux

How to remove carriage returns from text files on Linux

When carriage returns (also referred to as Ctrl+M's) get on your nerves, don't fret. There are several easy ways to remove them.

How to freeze and lock your Linux system (and why you would want to)

How to freeze and lock your Linux system (and why you would want to)

What it means to freeze a terminal window and lock a screen -- and how to manage these activities on your Linux system.

How to use Terminator on Linux to run multiple terminals in one window

How to use Terminator on Linux to run multiple terminals in one window

Providing an option for multiple GNOME terminals within a single window frame, terminator lets you flexibly align your workspace to suit your needs.

Celebrating Linux's 28 years

Celebrating Linux's 28 years

Linux just turned 28, and in that time, it has moved from being an interesting project to what is in many ways the most significant operating system, spawning hundreds of distributions and taking over the field of supercomputing.

How to rename a group of files on Linux

How to rename a group of files on Linux

To rename a group of files with a single command, use the rename command. It requires the use of regular expressions and can tell you what changes will be made before making them.

A guided tour of Linux file system types

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?

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.

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