Linux CLI - File Permissions and Ownership
You have a script that needs to run with root privileges but should be editable only by its owner. Which special permission should you set and how?
You have a script that needs to run with root privileges but should be editable only by its owner. Which special permission should you set and how?
hard📝 Application Q9 of 15
Step-by-Step Solution
Solution:
Step 1: Determine how to run script with root privileges
Setuid bit allows the script to run with the file owner's (root) privileges.Step 2: Confirm editing restrictions
File ownership and permissions control editing rights; setuid does not affect editing.Step 3: Evaluate other options
Setgid affects group, sticky bit affects deletion, sudo requires manual use.Final Answer:
Setuid bit on the script file -> Option AQuick Check:
Setuid runs script as owner (root) [OK]
Quick Trick: Setuid runs script as root, owner controls edits [OK]
Common Mistakes:
- Using setgid instead of setuid
- Confusing sticky bit with execution
- Ignoring need for setuid to run as root
Master "File Permissions and Ownership" in Linux CLI
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