函数的导入

#!/bin/sh
# Scriptname: mainprog
# This is the main script that will call the function, addon

#datafile=$HOME/bourne/datafile
datafile=./datafile
. dbfunctions      # The dot command reads the dbfunctions file
                    # into memory
if [ ! -f $datafile ]
then
 echo "`basename $datafile` does not exist" 1>&2
 exit 1
fi
echo "Select one: "
cat <  [1] Add info
 [2] Delete info
 [3] Exit

EOF
read choice
case $choice in
 1)  addon          # Calling the addon function
   ;;
 2)  delete         # Calling the delete function
   ;;
 3)  update
    ;;
 4)
  echo Bye
  exit 0
   ;;
 *)  echo Bad choice
  exit 2
    ;;
esac
echo Returned from function call
echo The name is $name    
# Variable set in the function are known in this shell.