I'm confronted with a bewildering array of linux boxen.
How do I find out how many processors they have, how many cores, how much RAM they have, how fast their disks are, how heavily loaded they are by competing people etc, etc?
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I'm not aware of any 'general purpose' tool that will gather everything you want.
However, all of this information is available if you want to script something yourself.
For hardware information, there's no single place but you might want to start in
Check out the wikipedia article here: https://secure.wikimedia.org/wikipedia/en/wiki/Procfs#Linux
There are then also commands such as
As for finding out how used the machine is... that's not the most straightforward thing to determine and I'm going to leave that alone..