Multiple choice technology programming languages

18.) What is the difference between at & cron?

  1. a) Both are Unix scheduling utilities

  2. b) at is restricted one and crontab is not restricted

  3. c) No difference

  4. d) at takes input from user while cron takes from a confiuration file
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

at and cron are both Unix job scheduling utilities. at schedules one-time jobs and takes input directly from the user (stdin), while cron schedules recurring jobs by reading configuration from crontab files.

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