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often find myself needing to run the same command on many boxes at the same time. For example, I’ll sometimes need to check the memory usage of a fleet of boxes. Other times, I’ll want to quickly grep the logs of multiple machines, for troubleshooting purposes. Once you grow beyond managing one or two servers, you’ll find yourself wasting a ton of time if you don’t have a way to run commands on multiple Linux computers simultaneously. In this post, I’ll explain how to quickly run commands on large numbers of Linux machines at once.
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