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.
Looping your way through bash
There are many ways to loop through data in a bash script and on the command line. Which way is best depends on what you're trying to do.
Viewing network bandwidth usage with bmon
Introducing bmon, a monitoring and debugging tool that captures network statistics and makes them easily digestible.
Using multitail on Linux
Multitail allows you to watch multiple files as they are being updated -- like a split-window tail -f display. Let's check out how you can use it to monitor system activity and your files.
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
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
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
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
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)
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
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
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
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
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 are wondering how it's going to change Red Hat's role in the Linux world. Here are some thoughts.
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