Automatically run a command every time a file is changed

Posted by ehsanul on Server Fault See other posts from Server Fault or by ehsanul
Published on 2010-06-01T00:52:43Z Indexed on 2010/06/01 1:03 UTC
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Each time I make some changes to a file and save, I'd like a command to run. I can set up a Ruby script that could monitor the file and run the command as I'd like, but it occurs to me that there should be some simple Unix way to do this. Is there?

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