Which of the following commands is used to have a two-way communication with any person who is currently logged in ?
Correct answer: C. write
- A. mail
- B. mesg
- C. write
- D. grep
Explanation
`write` sends an interactive message to another logged-in user and supports two-way communication. `mail` is primarily asynchronous, while `mesg` only controls whether messages are permitted.
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