2025-05-06 (3 UE): Shell/Permissions (Exercises)

Basic File And Directory

From Exercises: Create/Copy/Move/Remove:

• Exercise: mkdir

• Exercise: Create Files (I/O Redirection)

• Exercise: Copy Files

• Exercise: Move Files

• Exercise: Verify, Repeat

• Exercise: Copy Directory Tree

• Exercise: Remove Directory Tree

• Exercise: Funny Stuff

Permissions

For this, we log in to our team computer. For example:

$ ssh -p 2020 joerg.faschingbauer@jfasch.bounceme.net

On the team computer, we check our identity, and see that we are all members of the team group:

$ id
uid=1001(joerg.faschingbauer) gid=1002(joerg.faschingbauer) groups=1002(joerg.faschingbauer),1001(team)

Knowing this, we can now tune permissions of files and directories to explicitly share with other team members.

From Exercises: File System Permissions

• Exercise: Determine Your User Credentials

• Exercise: Create Group-Shared File

• Exercise: Create Private Directory

• Question: Private Directory

• Exercise: Create Public Directory

• Question: Public Directory

• FH/Moodle Quiz: Permissions