Shell Programming and Scripting

#!/bin/sh
file=$1

if [ `ls -l $file | cut -c1` = 'd' ]
then
    echo "File is a directory"
else
    echo "File is not a directory!"
fi

philip@philip-laptop:~/Desktop$ sh exFive.sh test.java
File is not a directory!
philip@philip-laptop:~/Desktop$ sh exFive.sh ndiswrapper-1.51/
[: 9: -: unexpected operator
File is not a directory!

if [ -f /path/to/file ]		# be sure the file exists
then
   echo "It is a file and exists!"
fi

if [ -d /path/to/file ]		# be sure the file exists
then
   echo "It is a directory and exists!"
fi