Case Study
A BASH-based system monitoring solution that automates health checks and log collection on a Linux machine, scheduled to run hands-free via cron.
View on GitHub01 — Problem
System administrators regularly need visibility into the health of their Linux machines — CPU usage, memory, disk space, and running processes. Doing this manually is time-consuming, error-prone, and fails to capture data between checks. The challenge was to automate this process entirely: write a script that collects system metrics and logs them on a defined schedule, without requiring any human intervention after initial setup.
02 — Action
Wrote monitor.sh, a BASH shell script that captures
system health data — including process snapshots, system logs, and
diagnostic output — and writes results to structured log files
(system_log.txt, debug_cron_custom.log).
Configured a cron job to execute the script on a
recurring schedule, ensuring continuous monitoring without manual
triggers. Validated the cron configuration and debugged scheduling
behavior using custom log output to confirm execution timing and catch
silent failures.
03 — Result
Delivered a fully automated monitoring script running on a live Linux environment, producing structured log files on a cron-defined schedule with zero manual intervention. The project demonstrated core sysadmin competencies — shell scripting, task scheduling, and log management — that are directly applicable to IT operations, DevOps, and infrastructure engineering roles. Debugging the cron execution path also built practical skills in diagnosing silent automation failures, a common real-world challenge.