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If I use at to schedule a command and the trigger time is missed (e.g. due to an unexpected power failure), will it still execute at the earliest possible time? (e.g. once power comes back on and it reboots)

Example:

  1. I schedule command to run at 09:00
  2. The power goes out at 08:59
  3. The power comes back on at 09:01

Does the command ever run?

arcyqwerty
  • 1,080

1 Answers1

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Yes, the at daemon atd processes all at jobs next time it runs.

Tested/verified on Ubuntu 18 and dockerized Alpine 3

HyperActive
  • 211