Linux30: Automating the Daily Health Check

Running the same checks manually wastes time — security operations analysts automate routine validation

Objective

Learner can write an executable bash script with shebang, command sequences, and output redirection

Mission

Write an executable script daily-check.sh in ~/shared/ that runs disk usage check, process status check, and saves output to ~/documents/daily-check-output.log.

Commands you may need to solve this lab

#!/bin/bashdf -hps auxchmod +x./

Questions

1. What does the shebang (#!/bin/bash) at the first line of a script do?

2. Why does a bash script require execute permissions before running directly via ./script.sh?

3. How do you execute a script in the current directory without adding its path to PATH?

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