Question

Possible Duplicate:
How to sort an array in BASH

I have numbers in the array 10 30 44 44 69 12 11.... How to display the highest from array?

echo $NUM //result 69

Answer 1

You can use sort to find out.

#! /bin/bash
ar=(10 30 44 44 69 12 11)
IFS=$'\n'
echo "${ar[*]}" | sort -nr | head -n1

Alternatively, search for the maximum yourself:

max=${ar[0]}
for n in "${ar[@]}" ; do
    ((n > max)) && max=$n
done
echo $max