Shell script to check whether file is executable, readable and writeable

#Check access permission of the given file
echo "Enter file name: \c"
read file
if [ -e $file ]
then
    echo "'$file' is"
    if [ -x $file ]
    then
       echo "   executable"
    fi
    if [ -r $file ]
    then
       echo "    readable"
    fi
    if [ -w $file ]
    then
       echo "    writeable"
    fi
    if [ -r $file -a -w $file ]
    then
       echo "     both readable and writeable"
    fi
else
    echo "'$file' does not exist"
fi



OUTPUT
csc@csc-SVE1513CYNB ~ $ sh ftesh.sh
Enter file name: a.out
'a.out' is
   executable
    readable
    writeable
     both readable and writeable