Learn how to use the head command in Linux to quickly preview files, analyze logs, and build powerful pipelines. Practical examples for sysadmins in 2025.
Master the awk command in Linux with practical examples for log analysis, CSV processing, and data extraction. Learn field separators, pattern matching, and real-world use cases.
Learn how to use journalctl in Linux to troubleshoot problems and monitor services. Master filtering by time, service, and priority with real-world examples.