dbfunctions

UNIX[1].shell范例精解(第4版)_code

addon () {    # Function is named and defined in file .dbfunctions
	while true
	do
		echo "Adding information "
		echo "Type the full name of employee "
		read name
		echo "Type address for employee "
		read address
		echo "Type start date for employee (4/10/88 ) :"
		read startdate
    
		echo $name:$address:$startdate
		echo -n "Is this correct? "
		read ans
		case "$ans"  in
		[Yy]*)
		          echo "Adding info..."
		          echo $name:$address:$startdate>>datafile
		     sort -u datafile -o datafile
		     echo -n "Do you want to go back to the main menu? "
		     read ans
		     if [ $ans = Y -o $ans = y ]
		     then
		          return        # Return to calling program
		     else

		          continue      # Go to the top of the loop
		     fi
		     ;;
		*)
		     echo "Do you want to try again? "
		     read answer
		case "$answer" in
		[Yy]*) continue;;
		*) exit;;
		esac
		     ;;
	esac
done
}	# End of function definition