Insights to CPU/RAM usage on Linux using the ps command

To see what processes are running on your machine, sorted by their memory usage, run the following command:
ps aux | awk '{print $2, $4, $11}' | sort -k2rn | head -n 15
Similar to the above, but with some headings thrown in:
echo [PID] [MEM] [PATH] &&ps aux | awk '{print $2, $4, $11}' | sort -k2rn | head -n 15
To view similar but CPU focused, not RAM percentage:
 ps -eo pcpu,pid,user,args | sort -k 1 -r | head -20

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