sorting array in bash and regex

Question

I have an array that have the CPU core num and a number for each core. the array is totals.

How can I sort

totals=( CPU0=12345 CPU1=23456 CPU3=01234)

according to numbers and return the sorted version of cpu number for example (3,0,1) means it is sorted and core 3 is the min and core 1 is the max, in bash? and then assign (3,0,1) to an array?

Don't you think it would be easier if you just asked us how to write the whole script rather than letting us write it step by step? — Michał Górny
– Michał Górny, Commented Jul 23, 2012 at 9:47

Costi Ciudatu · Accepted Answer · 2012-07-23 09:10:05Z

1

Try this for sorting:

echo ${totals[*]} | tr ' ' '\n' | sort -n -t= -k2

To store only the CPU numbers in a new array, try:

sorted_cpu_numbers=( $(echo ${totals[*]} | tr ' ' '\n' | sort -n -t= -k2 | awk -F= '{print substr($1, 4, length($1))}') )

edited Jul 23, 2012 at 9:10

answered Jul 23, 2012 at 9:02

Costi Ciudatu

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