Shell programming - array sorting

# Shell programming

# Sorting 5 numbers

echo "Enter 5 values : "

for i in 0 1 2 3 4

do

read a[$i]

done

echo "Entered Values are "

for (( i=0; i<5; i++))

do

echo -e "\t ${a[$i]}"

done

// Sorting loop

for ((i=0;i<4;i++))

do

for ((j=`expr $i + 1`; j<5;j++))

do

if [ ${a[$j]} -lt ${a[i]} ]

then

t=${a[$i]}

          a[$i]=${a[$j]}

          a[$j]=$t

fi

done

done

// Output

echo "Sorted Numbers : "

for ((i=0;i<5;i++))

do

echo -e "\t ${a[$i]}"

done