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Sunday, April 12, 2009

Monitoring changes over time...

If you need to run a command repeatedly at some interval and watch the output and know what has changed from the last iteration. For example say you want to monitor an XML feed which is providing data from weather sensors and you want to see the data every 2 minutes and also see the new data highlighted? try the Unix watch utility. It has parameters to specify update interval and also supports matching wildcard.

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