#bash: Switch

switch.sh

#!/bin/bash

# use case statement to make decision for rental
case $rental in
   "car") echo "For $rental rental is Rs.20 per k/m.";;
   "van") echo "For $rental rental is Rs.10 per k/m.";;
   "jeep") echo "For $rental rental is Rs.5 per k/m.";;
   "bicycle") echo "For $rental rental 20 paisa per k/m.";;
   "enfield") echo "For $rental rental Rs.3  per k/m.";;
   "thunderbird") echo "For $rental rental Rs.5 per k/m.";;
   *) echo "Sorry, I can not get a $rental rental  for you!";;
esac


NOW=$(date +"%a")
case $NOW in
	Mon)	
		echo "Full backup";;
	Tue|Wed|Thu|Fri)
		echo "Partial backup";;
	Sat|Sun)	
		echo "No backup";;
	*) ;;
esac


OPT=$1   # option
FILE=$2  # filename

# test -e and -E command line args matching
case $OPT in
  -e|-E) 
  	echo "Editing $2 file..." 
        # make sure filename is passed else an error displayed   
  	[ -z $FILE ] && { echo "File name missing"; exit 1; } || vi $FILE	
  	;;
  -c|-C) 
  	echo "Displaying $2 file..." 
  	[ -z $FILE ] && { echo "File name missing"; exit 1; } || cat $FILE	
  	;;
  -d|-D) 
  	echo "Today is $(date)" 
  	;;
   *) 
    echo "Bad argument!" 
    echo "Usage: $0 -ecd filename"
    echo "	-e file : Edit file."
    echo "	-c file : Display file."
    echo "	-d      : Display current date and time."	
    ;;
esac