Multiple choice technology operating systems

Which of the following is not a shell variable?

  1. MAIL

  2. PATH

  3. TERM

  4. MESG
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

MAIL, PATH, and TERM are standard environmental shell variables used by Unix shells to determine mailbox locations, executable search paths, and terminal emulation types. MESG is not a shell variable, though mesg is a Unix command.

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