____ command allows superuser to communicate with users.(a) comm(b) cron(c) date(d) wallI got this question in an international level competition.The above asked question is from Administrator Specific Commands and Privileges topic in chapter Essential Shell Programming of Unix

____ command allows superuser to communicate with users.(a) comm(b) cr

1.	____ command allows superuser to communicate with users.(a) comm(b) cron(c) date(d) wallI got this question in an international level competition.The above asked question is from Administrator Specific Commands and Privileges topic in chapter Essential Shell Programming of Unix
Answer» Right answer is (d) WALL Explanation: The wall COMMAND can be used by the administrator to address all users SIMULTANEOUSLY. For EXAMPLE,

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