1.  
  2. echo Please enter an integer value of millimetres to be converted:
  3. read MM
  4. CM=$(echo "scale=1; $MM / 10" | bc)
  5. M=$(echo "scale=3; $MM / 1000" | bc)
  6. echo $MM millimetres is equal to $CM centimetres.
  7. if [ $MM -gt 999 ]
  8. then echo $MM millimetres is equal to $M metres.
  9. else echo $MM millimetres is equal to 0$M metres.
  10. fi