UNIX for Dummies Questions & Answers

#############################################################
# This shell program will prompt the user for moving files. #
#############################################################
#(1) test if there are any arguments
if [ $# -eq 0 ]
 then
  echo "No arguments: include file name."
  exit
fi
#(2) ask if file is to be moved to directory or file
 echo "Move to directory or new file name (d or f)?\c"
 read x
#(3) test if x is a directory; if not, leave script
if [ ${x:?} = d ]
then
 echo "Enter directory name ->\c"
 read dir1
# perform the move
 mv $1 $dir1
 echo "$1 moved to $dir1"
exit
#(4) test if it is a file
elif [ $x = f ]
 then
  echo "Enter new file name ->\c"
exit
#(5) response is not d or f
else
 echo "$x not a correct response."
 exit
fi