This command will add up RAM usage of all processes whose name contains "java" and output the sum of percentages in HRF. Also, unlike the original #15430, it wont fail on processes with a usage of >9.9%. Pleases note that this command wont work reliably in use cases where a significant portion of processes involved are using less than 0.1% of RAM, because they will be counted as "0", even though a great number of them could add up to significant amounts. Show Sample Output
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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sed 's/$/% of RAM used/'
ps -eo pmem,comm | grep java | awk '{ sum+=$1} END {print sum}'
ps -eo pmem,comm | grep java | awk '{ sum+=$1} END {print sum " of RAM used"}'