Bash script for selecting minecraft instance to launch

minecraft.sh

#!/bin/bash

# directory containing minecraft instances
# create new subdirectory to add an instance
mchome=~/Games/minecraft

java_opts=-Xmx2048M -Xms1024M

white='\e[1;37m'
cyan='\e[0;36m'
blue='\e[0;34m'
green='\e[0;32m'
yellow='\e[0;33m'
reset='\e[0m'

instances=$(cd ${mchome}; ls -d */ | sed 's/\///')

if [ "$1" = "-v" ]; then
	verbose=1
fi

linked=$(readlink ~/.minecraft)

count=1
for name in ${instances}; do
	echo -e "${yellow}[${count}]: ${blue}${name}${reset}"
	if [[ ${linked} == */${name} ]]; then
		current=${name}
	fi
	count=$((${count}+1))
done

echo -en "${white}Select instance to launch [${green}${current}${white}]:${reset} "
read input

if [ "${input}" != "" ]; then
	instances=(${instances})
	tolink=${instances[$((${input}-1))]}
	rm ~/.minecraft
	ln -s ${mchome}/${tolink} ~/.minecraft
fi

if [ "${verbose}" = "1" ]; then
	java -jar ${java_opts} ${mchome}/minecraft.jar
else
	java -jar ${java_opts} ${mchome}/minecraft.jar >/dev/null 2>&1
fi