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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.

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How to use the sudo command: 2-Minute Linux Tips

Learn how to use the sudo command. It’s a very important command for Linux security because it provides a way for individual users to run specific commands with the authority of root.

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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.

2-Minute Linux Tip: The env command

Use the env command to learn how to gather info about your shell environment on Linux.

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How to use the env command: 2-Minute Linux Tips

Learn how to use the env command. The most useful thing it does is to provide information on your shell environment when you’re working on the Linux command line.

Unix as a Second Language: The touch command

The Linux touch command allows users to create an empty file or update a file’s data and time settings. You might want to do this if you need to be sure that a file exists before a script or process begins. The command can also be...

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How to use the touch command: 2-Minute Linux Tips

In this Linux tip, learn how to use the touch command. It allows you to create an empty file or update a file’s last updated date/time settings.

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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.

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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.

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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

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How to use the wc command: 2-Minute Linux Tips

Learn the wc command. It provides an easy way to count the lines, words and characters in a file or in output from some other command.

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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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How to use the groups command: 2-Minute Linux Tips

Learn how to use the groups command. It provides a list of the groups that a user is a member of by pulling information from the /etc/group and /etc/passwd files.

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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.

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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.

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How to use the setfactl and getfactl commands: 2-Minute Linux Tips

In this Linux tip, learn how to use the setfacl and getfacl commands. They allow you to establish and report on file permissions that reach beyond the traditional read, write and execute permissions on Linux systems.

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