function finfo{  if [ ! -e "$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-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 "$1" ]; then      echo 'you have execute permission on the file.'  fi}for filename in "$@" ; do    finfo "$filename"    echodone