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How do I send email on shutdown or reboot

Hi,

I am attempting to send an email on system shutdown and start up. Right now I have a cron entry that utilizes the @reboot option. This fulfills one of my needs - getting the email on start up. How would I go about getting the system to send out an email at the other end of the process? Namely, I want an email as the system is shutting down. Theoretically, this means I should receive two emails every time the system starts (once because I shut it down or rebooted it, and once because it came back up).

Thank you

Comments

  • atreyuatreyu Posts: 216
    McFly wrote:
    Hi,

    I am attempting to send an email on system shutdown and start up. Right now I have a cron entry that utilizes the @reboot option. This fulfills one of my needs - getting the email on start up. How would I go about getting the system to send out an email at the other end of the process? Namely, I want an email as the system is shutting down. Theoretically, this means I should receive two emails every time the system starts (once because I shut it down or rebooted it, and once because it came back up).

    Thank you
    See if this thread helps you. It is RH/Centos oriented. In the initscript you make, you could have a "start" stanza which gets called upon startup, and a "stop" stanza which gets called upon shutdown/reboot. Shout back if this is not clear to you.
  • McFlyMcFly Posts: 3
    Thank you. That looks very useful. I believe I can modify that to send out the email I'm looking for.

    Thanks.
  • atreyuatreyu Posts: 216
    McFly wrote:
    Thank you. That looks very useful. I believe I can modify that to send out the email I'm looking for.

    Thanks.
    Cheers!
  • McFlyMcFly Posts: 3
    As a follow up - in addition to the link posted above with very detailed directions, I also found the tutorial below. The link above showed up to set up the shutdown side of this project and a little extra searching showed how to do the start up (actually, I learned about the @reboot cron ability too)

    To see others, run
    man 5 cron
    
    . Spiffy little entries there. Would have been very nice to have a @shutdown option. Alas...

    Send email on shutdown and restart (Linux)

    Anyway, thanks again for pointing me to the thread above atreyu. It was very useful in showing me what I needed and crafting the correct Google search to get the rest of what I needed.
  • biznabizna Posts: 1
    You can simply put a small script that takes the time, and send you an Email with either 'boot' or 'shutdown'.

    Put it in the relevant rc's, and that's it.

    For example, a simple 'boot' script can be:
    #!/bin/bash
    mail -s "boot at `date`" [email protected]
    
    Plain, simple. Leave the hassle for other folks.

    Good luck!
    Dotan
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