Write a script to display the directory in the descending order of the size of each file.

[[   METHOD 1   ]]

echo "ENTER DIR"
read dir
`echo ls -lS $dir` > file.txt
len=`cat file.txt | wc -l`
i=2
while [ $i -le $len ]
do
record=`ls -lS $dir | head -n $i | tail -n 1`
# record=`cat file.txt | head -n $i | tail -n 1`
filename=`echo $record | cut -d " " -f 9`
echo "$filename"
i=`expr $i + 1`
done

[[   METHOD 2   ]]

clear
echo "ENTER DIR"
read dir
`echo ls -lS $dir` > file.txt
len=`cat file.txt | wc -l`
i=2
echo "SIZE          FILENAME"
echo "====       ==============="
while [ $i -le $len ]
do
record=`ls -lS $dir | head -n $i | tail -n 1`
# record=`cat file.txt | head -n $i | tail -n 1`
filename=`echo $record | cut -d " " -f 9`
size=` echo $record | cut -d " " -f 5`
echo "$size        $filename"
i=`expr $i + 1`
done