How to check if power cable is connected from the command line?

Posted by D Connors on Super User See other posts from Super User or by D Connors
Published on 2010-06-09T22:48:46Z Indexed on 2010/06/10 18:24 UTC
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Hi, I'm running ubuntu on my notebook and I need a way to check (from the command line) if the power cable is connected. Is there any system file that keeps log of this? or is there a bash command that will help me?

I need this for a script that will behave differently depending on whether the power cord is plugged in or not.

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