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I know that I can shutdown my Windows computer with comments.

Is this possible on the raspberry pi? I am using Raspbian "Wheezy"

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    you have a lot of open questions.If you are satisfied with answers,accept them.It helps the website stats.
    – SteveIrwin
    Apr 7, 2013 at 0:35
  • @steve I accepted a few. Apr 7, 2013 at 4:58

1 Answer 1

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Take a look at man shutdown. There it says:

SYNOPSIS
/sbin/shutdown [-akrhPHfFnc] [-t sec] time [warning message]

So when you are using shutdown you can send out a warning message:

sudo shutdown -h 12:30 'System will go down due to rainy weather.'

It will also print the number of minutes until shutdown. This should be sent to all users logged into some console.

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  • Maybe OP would like to log reason for shutting down, instead of notifying logged users?
    – avra
    Apr 9, 2013 at 7:18
  • Then man logger will be to the rescue. logger can be run before the shutdown to log arbitrary stuff.
    – Arne
    Apr 9, 2013 at 9:04

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