Show the 20 most CPU/Memory hungry processes

ps aux | sort +2n | tail -20
This command will show the 20 processes using the most CPU time (hungriest at the bottom). You can see the 20 most memory intensive processes (hungriest at the bottom) by running: ps aux | sort +3n | tail -20 Or, run both: echo "CPU:" && ps aux | sort +2n | tail -20 && echo "Memory:" && ps aux | sort +3n | tail -20

3
By: dopeman
2009-03-31 12:03:34

What Others Think

sort 5.97 is saying that +number is deprecated and you should use '-k number' instead. don't think it really matters, but the warning takes away from the usefulness of this command. changing the full command to be: echo "CPU:" && ps aux | sort -k 2n | tail -20 && echo "Memory:" && ps aux | sort -k 3n | tail -20 makes this work perfectly. thanks!
conor · 554 weeks and 2 days ago

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Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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