Challenges

Focused, hands-on DevOps and server-side problems with hints, feedback, and automated solution checks.

Community Collection

Challenges contributed by the community members sharing their knowledge and expertise.

Challenge

The SED command : Survival Guide - What You Must Know

Master **sed**, the essential stream editor for Linux SysAdmins. Progress through 10 tasks: simple & global substitution, regex patterns, line ranges, deletion, insertion, ... Work with realistic Rocky Linux system files in /home/laborant/sed_challenge/.

Challenge

AWK Mastery: From Zero to Hero

3-phase AWK challenge on realistic data in /home/laborant/awk_challenge/. Fundamentals: columns, delimiters, formatting. Logic & regex: filters, anchors, conditions, math. Sysadmin: logs, CSVs, metrics, counts, reports. Data lives under /home/laborant/awk_challenge/ (logs/access, data/hr, sys/metrics) and outputs are written to /home/laborant/ files.