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Does a way exist to find the min and max in...

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Swiss Knight Posted messages 2257 Status Membre -  
Swiss Knight Posted messages 2257 Status Membre -
Hello!

Is there a simple way in bash to find the minimum and maximum of numbers contained in a string?
Example:
$ A=78,99,12

A trick that returns 12 as minimum and 99 as maximum?

Better: a trick that returns the average of the min found and the max found, i.e. here (99+12)/2
rounded to the nearest integer (well, in this case it will be the next higher integer, but if we divided by 3 it could be different)

I couldn't find a function like that:
min(A)=12
max(A)=99
not even in bc.

Thank you very much!

--
"If you can't explain a concept to a six-year-old, you don't understand it completely." -A. Einstein-

3 réponses

Réponse 1 / 3
dubcek Posted messages 18702 Registration date   Status Contributeur Last intervention   5 657
 
hello
awk can do 
$ awk '{n=split($0, a, "," ); asort(a); print int((a[1]+a[n])/2+.5)}' <<<"78,99,12" 56 $
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Réponse 2 / 3
Anonymous user
 
Hi,
bash can do
for i in ${var//,/ } do min=$((min?(min>i?i:min):i)) max=$((max?(max<i?i:max):i)) done echo "min: $min - max: $max - moy: $(((max+min)/2))" min: 12 - max: 99 - moy: 55
2
Réponse 3 / 3
Swiss Knight Posted messages 2257 Status Membre 110
 
:-)
Both of your solutions work very well. I still have a lot to learn.
Thank you!

"If you can't explain a concept to a six-year-old, you don't understand it fully." -A. Einstein-
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