du Interview Questions and Answers¶
Introduction¶
These questions test whether you understand what du does, when to use it, and how to verify the result on Linux.
Beginner Questions¶
What does du do?
It estimates file and directory disk usage.
Show a basic command.
du -sh /var/log
Intermediate Questions¶
Name useful options.
-s: summarize total only.-h: show human-readable sizes.--max-depth: limit directory depth.
Show a common administrator command.
du -h --max-depth=1 /var
Scenario-Based Questions¶
How would you handle du -sh?
du -sh /var/log
What would you verify afterward?
df -h /var
Expected output should look similar to:
1.4G /var/log
Practical Task Questions¶
Practice in a lab by running a safe version of the command, explaining the target, and showing the verification output.
Quick Review¶
du -sh /var/log
du -h --max-depth=1 /var
df -h /var
Related Guides¶
Summary¶
A strong du answer includes the purpose, a correct example, a common mistake, and a verification command with output you can interpret.