After running chmod u=rwx,g=rx,o= file.txt, what will be the permission string shown by ls -l file.txt?

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Linux CLI - File Permissions and Ownership

After running chmod u=rwx,g=rx,o= file.txt, what will be the permission string shown by ls -l file.txt?

A-rwxr-xr-x 1 user group 0 date file.txt

B-rwxr-x--- 1 user group 0 date file.txt

C-rw-r--r-- 1 user group 0 date file.txt

D-rwxrwxrwx 1 user group 0 date file.txt

Step-by-Step Solution

Solution:

Step 1: Analyze symbolic permissions set
Owner (u) = rwx, Group (g) = r-x, Others (o) = no permissions.
Step 2: Convert to permission string
Owner: rwx, Group: r-x, Others: --- results in '-rwxr-x---'.
Final Answer:
-rwxr-x--- 1 user group 0 date file.txt -> Option B
Quick Check:
u=rwx,g=rx,o= means others no permission [OK]

Quick Trick: Use u=, g=, o= to set exact permissions [OK]

Common Mistakes:

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