Mission 16

Permissions

Read and change fake modes and ownership without risking real files.

Permissions and users
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Lesson support

What to notice while you play.

Objective

Inspect and change fake mode and owner labels.

Hint

Use ls -l before chmod so you can compare the result.

Why it matters

Permissions protect files, but changes should be deliberate.

Common mistakes
  • Making everything 777.
  • Changing ownership without recording why.
Reference

Commands in this lesson.

ls [-la] [path]

List fake files and folders.

chmod <mode> <path>

Change a fake numeric permission mode.

chown <user:group> <path>

Change fake owner/group labels.

stat <path>

Show fake file details.