Learn how to use envsubst to replace all referenced environment variables in a text file with their corresponding values
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baeldung
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Baeldung on Linux
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How to Get the MAC Address of a Network Interface
Filed under Networking
Learn how to find the MAC address of a network interface in Linux.
Inserting a Newline in a Variable in Bash
Filed under Text Processing
Learn how to insert newlines to a variable in bash.
Iterating Over Each Line of ls -l Output
Filed under Scripting
Learn about the different ways we can iterate over the output of the ls command.
Division with Variables in a Linux Shell
Filed under Scripting
Learn multiple ways of performing division on integers and floating-point numbers in Bash
Tainted Linux Kernel
Filed under Security
A quick and practical explanation of tainted Linux kernels.
Automatically Capture Output of the Last Command Into a Variable Using Bash
Filed under Scripting
Let’s look at a few techniques for storing command output in variables in bash.
Request a File Without Saving in Linux
Filed under Web
Explore different approaches to request a file in Linux without saving it locally.
Redirect the Output of systemd Service to a File
Filed under Service Management
Learn how to redirect the output of a systemd service to a given file with a simple example