Advice for everyday Unix systems administration and some clever ways to approach more challenging problems.
There are several commands for checking up on memory usage in a Linux system. Focusing on which processes and users are consuming the most memory can benefit from a few carefully crafted tools and commands.
Useful Linux commands can help you evaluate disk storage, diagnose disk usage issues and manage disk space effectively.
Almost every bit of data needed to boot and run a Linux system is stored in a filesystem. Learn more about some commonly used Linux filesystem types.
Want to add color to the command line on Linux? You can create colored text in your scripts and use color settings to change the background of your screen.
Popular free and open source PDF editors include LibreOffice, PDFSam, PDFedit, ONLYOFFICE and Xournal++.
Learn how to manage file permissions, view commands, access system details, compare files, and display running commands.
These 25 commonly used commands are ideal for newcomers who want to get started on the Linux command line.
There are plenty of commands to choose from when you want to know how hard your disks are working or identify potential slowdowns.
Looping forever is easy if you know what commands you want to run repeatedly and the conditions under which you want them to stop running.
Linux provides very useful options for viewing file attributes, such as owners and permissions, as well as file content.
Typing the same command again and again can become tiresome. Here are a number of ways you can make repeating commands – or repeating commands but with some changes – a lot easier than you might expect.
Boost your Linux command line options and simplify your work with xargs, a handy tool for a number of data manipulation tasks.
An exit code other than 0 indicates that a script or a command has failed in some way. Learn more about exit codes and the types of errors they represent in this post.
The bash history feature can save you a lot of time when repeating commands or examining commands you’ve entered previously.
Linux systems provide many ways to view user activity, including when they login, how long they stay logged in, and what commands they run.
The top command is one of the most useful commands for getting a quick glimpse into how your Unix server is performing.
The diff, comm, cmp, and colordiff commands are among the many ways to compare text files on a Linux system.
The awk, cut, grep, expr, sed and xargs commands provide many useful options for manipulating text.
There are a number of spelling assistants you can use on Linux systems, including aspell, enchant-2, look, and grep. Some commands will need to be installed on your system.
Exiting a script and logging out are very different, but sometimes you may need to log out of your Linux system from within a script. Here's how to do it.
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