if [ ! -a $1 ]; then
    echo "file $1 does not exist."
    exit 1
fi
if [ -d $1 ]; then
    echo -n "$1 is a directory that you may "
    if [ ! -x $1 ]; then
        echo -n "not "
    fi
    echo "search."
elif [ -f $1 ]; then
    echo "$1 is a regular file."
else
    echo "$1 is a special type of file."
fi
if [ -O $1 ]; then
    echo 'you own the file.'
else
    echo 'you do not own the file.'
fi
if [ -r $1 ]; then
    echo 'you have read permission on the file.'
fi
if [ -w $1 ]; then
    echo 'you have write permission on the file.'
fi
if [ -x $1 -a ! -d $1 ]; then
    echo 'you have execute permission on the file.'
fi