Question

14

Does cron wake up my computer?

rated 0 times [ 14] [ 0] / answers: 1 / hits: 6114 / 1 Year ago, tue, march 21, 2023, 5:35:33

I need to start a Python script every day at midnight, and after some searching on the internet, I found out, that I can use cron for that. What I am curious about is, that if I schedule a cron task for midnight, will it wake up my computer to do the job? Or do I have to wake up the computer using something else? I am using Ubuntu 16.04.

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

rtbrbab

Add To Favorites

Follow

Total Points: 461

Total Questions: 126

Total Answers: 117

Location: Saudi Arabia

Member since Fri, Jul 1, 2022

2 Years ago

answered 1 Year ago ersoggles · Accepted Answer

Short answer:

No.

You can however use rtcwake. With rtcwake, you can wake up the computer, set it up to run commands and scripts afterwards etc.

Options include both waking up at an absolute time, as well as waking up at a specific time span from now:

-s seconds | --seconds seconds

    Sets the wakeup time to seconds in future from now. 

-t time_t | --time time_t

    Sets the wakeup time to the absolute time time_t. time_t is the time in seconds since 1970-01-01, 00:00 UTC. Use the

An example of how rtcwake can be used is in this answer.

See also, as always, man rtcwake