sorting variables in a bash script - possible?

graysky · 2009-11-25 09:02:04

Is it possible to have a bash script pick the highest and lowest values of four variables? I've been googling for this but haven't come up with anything. I have a script that assigns variables ($c0, $c1, $c2, and $c3) based on the coretemps from grep/sed statements of sensors. I'd like to also assign two new variables ($chigh and $clow) that will be the highest and lowest of the original four but I don't know how to go about it in bash.

Thanks!

Last edited by graysky (2009-11-25 09:03:36)

Allan · 2009-11-25 09:03:55

> a=10
> b=20
> (( a < b )) && echo $a || echo $b
10
> b=5
> (( a < b )) && echo $a || echo $b
5

Procyon · 2009-11-25 09:41:20

Building up from Allan's for four

highest=0
lowest=999
for value in 40 100 20 80; do (( value < lowest )) && lowest=$value; (( value > highest )) && highest=$value; done
echo HIGH: $highest
echo LOW: $lowest

graysky · 2009-11-25 14:51:18

Thanks guys.

brisbin33 · 2009-11-25 15:08:15

just for shits and giggles

LC_ALL=C range=( $( (for value in 40 100 20 80; do echo $value; done) | sort -n ) )

echo HIGH: ${range[${#range[@]}-1]}
echo LOW:  ${range[0]}

Arch Linux

#1 2009-11-25 09:02:04

sorting variables in a bash script - possible?

#2 2009-11-25 09:03:55

Re: sorting variables in a bash script - possible?

#3 2009-11-25 09:41:20

Re: sorting variables in a bash script - possible?

#4 2009-11-25 14:51:18

Re: sorting variables in a bash script - possible?

#5 2009-11-25 15:08:15

Re: sorting variables in a bash script - possible?

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