Shell Script to find Greatest and Smallest number

Q. How do I write shell script to find Smallest and Greatest number in an array

Ans:

#!/bin/bash
echo "enter size of an array"
read n
#taking input from user
for((i=0;i<n;i++))
do
echo " enter $((i+1)) number"
read nos[$i]
done
#printing the entered number
echo "number entered are"
for((i=0;i<n;i++))
do
echo ${nos[$i]}
done
#main loop
small=${nos[0]}
greatest=${nos[0]}
for((i=0;i<n;i++))
do
#logic for smallest number
if [ ${nos[$i]} -lt $small ]; then
small=${nos[$i]}
#logic for greatest number
elif [ ${nos[$i]} -gt $greatest ]; then
greatest=${nos[$i]}
fi
done
#printing smallest and greatest number
echo "smallest number in an array is $small"
echo "greatest number in an array is $greatest"

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Shell Script to Display numbers Using Array

Q. How to use array in Bash for taking input and displaying it

Ans:

#!/bin/bash
for((i=0;i<5;i++))
do
echo "enter `expr $i + 1` number"
read arr[$i]
done
echo "the numbers you hav entered are"
for((i=0;i<5;i++))
do
echo ${arr[$i]}
done

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