zxXcode

#!/usr/local/bin/bash

declare -A xcodes
xcodes=(
	[Xcode7.3.1]="/Applications/Xcode.app"
	[Xcode8Beta]="/Applications/Xcode-beta.app"
	[currentVersion]=""
	[zquit]=""
	)

chooseXcode()
{
	echo ""
	xcode=$1
	echo -e "\e[1;33mXcodePath=${xcode}\e[0m"
	sudo xcode-select -s ${xcode}
	showCurrentViersion
}

showCurrentViersion()
{
	echo ""
	echo -e "\e[4;32mXcode version:\e[0m"
	xcodebuild -version
	echo ""
	echo -e "\e[4;32mSwift version:\e[0m"
	swift --version	
}

mainFunction()
{
	while [[ 1 ]]; do
		echo ""
		echo -e  "\e[1;35mchoose one of Xcode blow:\e[0m"
		select key in ${!xcodes[*]};  
		do  
			break  
		done
		case $key in
		  	 Xcode7.3.1 ) 		 chooseXcode ${xcodes[$key]};;
			 Xcode8Beta ) 	     chooseXcode ${xcodes[$key]};;
			 currentVersion)	 showCurrentViersion ;;
			 zquit )			exit;;
		  	*) echo "not correct input";; 
		esac 
	done
}

mainFunction