Write a Health Check Script

Monitoring is a script that reports a number instead of a feeling. Write a health check that reads the application log and prints a verdict a monitoring agent can scrape.

Validator

⏱ 0:00

IDLE — checks run live as you type commands; submit when done

01Requirements

live checks

Directory ~/scripts exists○
File ~/scripts/healthcheck.sh exists○
The script greps the application log for ERROR lines○
The script prints a healthy or degraded verdict○

02Walkthrough

1 of 6 revealed

01
Create the scripts directory
One folder for every automation script you own.
mkdir ~/scripts
5 locked · each failed submit reveals one

03Stuck?

0 of 3 revealed

Take a hint without losing the lab — each one points at the thing to look at, not at the answer.

04AI Tutor

guides, never solves

Tell me what you're stuck on — I'll nudge, not solve. Which requirement are you looking at?

04Notebook

saved locally in this browser

learner@lab — ubuntu:24.04

Session is disposable

↑/↓ recalls commands · Ctrl+Enter submits · type help for the command list

← Previous lab

Write a Backup Script

Linux

Next lab →

Trace Your Network Setup

Networking