Write a shell script that takes a command -line argument and reports on whether it is 
directory, a file, or something else.
Script:
echo " Enter File Name"
read str 
if [ -f $str ]
then 
echo "File exists and it is an ordinary file"
elif [ -d $str ]
then 
echo "directory file" 
else
echo "not exists" 
fi
if [ -c $str ]
then 
echo "character device files" 
fi
Output:
Enter File Name
Samplefile
File exists and it is an ordinary file