Mission 128

Link permission review

Review link metadata and target permissions together.

Permissions and users
8 minutes Advanced Lesson 128 of 360
lnreadlinkstat
Lesson 128 of 360 0/360 lessons 0/17 missions Permissions and users · 8 minutes
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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 key link

Run ln -s ~/.ssh/authorized_keys lab/key-link.

ln -s ~/.ssh/authorized_keys lab/key-link
Read link target

Run readlink lab/key-link.

readlink lab/key-link
Inspect target mode

Run stat ~/.ssh/authorized_keys.

stat ~/.ssh/authorized_keys
Lesson support

What to notice while you play.

Objective

Review link metadata and target permissions together.

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.

readlink <link>

Inspect a simulated symbolic link target.

ln -s <target> <link>

Create a simulated symbolic link.

stat <path>

Show lab file details.