Published at LXer:

Quick – answer me this: How much swap space is in use on your system right now? How big is the cache on your CPU? What kernel modules are currently loaded? How many total drives and partitions are you running? If you’re running Linux, all these questions (and a whole lot more) can be answered one easy way: take a look in /proc. It’s a goldmine of system information, just waiting to be retrieved by users, administrators, and scripts. In this guide we’ll take a trip through /proc to see just what valuable system information you’ve been missing out on.

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