[Solved] What does the numeric permission mode 755 mean for a file in Linux? — Ans: User can read, write, execute; group and others can read and execute | Linux CLI

Linux CLI - File Permissions and Ownership

What does the numeric permission mode 755 mean for a file in Linux?

AUser can read, write, execute; group and others can read and execute

BUser can read and write; group and others can only read

CUser, group, and others can read, write, and execute

DUser can read and execute; group and others have no permissions

Step-by-Step Solution

Solution:

Step 1: Understand numeric permission digits
Each digit represents permissions for user, group, and others respectively. 7 means read(4)+write(2)+execute(1)=7, 5 means read(4)+execute(1)=5.
Step 2: Decode 755
User (7) has read, write, execute; group (5) and others (5) have read and execute only.
Final Answer:
User can read, write, execute; group and others can read and execute -> Option A
Quick Check:
755 = rwx r-x r-x [OK]

Quick Trick: 7 means full rights; 5 means read+execute only [OK]

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