Learn how to use Bash special built-in variables to control the execution flow of a script
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Baeldung on Linux
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Empty the Contents of a File
Filed under File Editing
Learn several ways to empty the content of a file.
Directory Navigation Using the pushd and popd Commands
Learn how to efficiently navigate directories with the pushd and popd commands.
Read Random Line From a File in Linux
We’ll look at different strategies to randomly choose a line of text from a file.
Process Memory Management in Linux
Filed under Processes
Learn how we can use the different memory measurements of Linux processes.
Linux source Command
Filed under Scripting
A quick and practical guide to Linux’s source command.
Introduction to Bash Array
Filed under Scripting
Learn about associative and index-based Bash arrays
Delete Lines in a Text File That Contain a Specific String
Filed under File Editing, File Searching, Search
Learn how to use grep, awk, and sed to delete lines containing a specific string from text files in Linux.
How to Reverse the Order of Lines in a File in Linux
Filed under File Editing, Text Processing
There are a few ways we can reverse the output of a file, or command. Here we look at some of the common methods and compare their performance.