Shell Commands
Master the terminal with in-depth command guides, scripting patterns, and productivity tips.
30 Essential Linux Commands Every Administrator Should Know
A practical reference of 30 Linux commands grouped by category: file management, text processing, system info,...
AWK on Linux: Text Processing and Data Extraction Guide
Learn AWK text processing on Linux with practical examples for log analysis, data extraction, and report generation....
jq Mastery: Command-Line JSON Processing for Linux Engineers
Master jq from basic field extraction through advanced streaming, aggregation, and real-world AWS/Kubernetes workflows...
grep for Linux Systems Administrators
Master grep: the single most important text-searching tool in a Linux admin's toolkit. From basic patterns to advanced...
sed Stream Editor: Text Transformation Mastery
sed processes text line by line, applying transformations with surgical precision. From simple substitutions to complex...
The find Command: File and Directory Hunter
The find command is a Swiss Army knife for locating files. Learn to search by name, size, date, permissions, and...
cd Seamless Directory Navigation Mastery
The cd command is your gateway to filesystem navigation. Learn advanced techniques, shortcuts, and patterns that will...
rm Command: Safe File Deletion Practices
The rm command is powerful and unforgiving. Learn safe deletion practices, recovery strategies, and how to prevent...