Mission 111

Filesystem checkpoint

Verify archive, checksum, and search habits.

Files and paths
8 minutes Capstone Lesson 111 of 360
tarsha256sumfind
Lesson 111 of 360 0/360 lessons 0/17 missions Files and paths · 8 minutes
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Ops lab terminal Training lab
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learner@clairos:/home/learner $ Unix ops lab: type a command, press Enter
Instructions 8 minutes

Click any instruction for the command details, the why, and the common mistake to avoid.

Create checkpoint archive

Run tar -cf lab/fs-check.tar README.txt.

tar -cf lab/fs-check.tar README.txt
List checkpoint archive

Run tar -tf lab/fs-check.tar.

tar -tf lab/fs-check.tar
Hash README

Run sha256sum README.txt.

sha256sum README.txt
Find README paths

Run find /home/learner -name README.

find /home/learner -name README
Lesson support

What to notice while you play.

Objective

Verify archive, checksum, and search habits.

Hint

Run the commands in order and compare the outputs.

Why it matters

Junior operators build confidence by gathering evidence before changing systems.

Common mistakes
  • Skipping the inspection step.
  • Assuming one command tells the whole story.
Reference

Commands in this lesson.

sha256sum <file>

Print a deterministic training checksum.

find [path] [-name text]

Search lab filesystem paths.

tar -cf|-tf <archive>

Create and list training archives.