What command is used to assign executable permission to the owner of the file named "letter" ?
Correct answer: B. chmod u + x letter
- A. chmod ugo + x letter
- B. chmod u + x letter
- C. chmod u + w letter
- D. chmod g + x letter
Explanation
In `chmod`, `u` identifies the file owner and `+x` adds execute permission, giving `chmod u+x letter`. The other choices either affect all users, add write permission, or target the group.
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