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You ran chmod 755 myfile but ls -l myfile shows -rw-r--r--. What is the likely problem?

medium📝 Debug Q14 of 15
Linux CLI - File Permissions and Ownership
You ran chmod 755 myfile but ls -l myfile shows -rw-r--r--. What is the likely problem?
AThe chmod command syntax is incorrect
BYou forgot to specify the filename
CYou do not have permission to change the file mode
DThe file is a directory, not a regular file
Step-by-Step Solution
Solution:
  1. Step 1: Understand chmod effect and output

    chmod 755 should set execute permission, but output shows no execute bits.
  2. Step 2: Identify permission issue

    If permissions did not change, likely user lacks rights to modify file mode (not owner or no sudo).
  3. Final Answer:

    You do not have permission to change the file mode -> Option C
  4. Quick Check:

    chmod no effect = permission denied [OK]
Quick Trick: No change after chmod? Check your ownership rights [OK]
Common Mistakes:
MISTAKES
  • Assuming syntax error
  • Thinking file type blocks chmod
  • Ignoring user permissions

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