Simple Install script for Minecraft on linux of course ;)

mineacraft-install.sh

#!/bin/bash

###### NOTE YOU HAVE TO RUN IN root


# cd "$(dirname ${BASH_SOURCE[0]})"
# dir=${PWD##*/}

dir="/opt/minecraft"

#script to make Install of Minecraft
makeInstall() {
    curl -O http://media-mcw.cursecdn.com/c/c5/Grass.png

	#making the program icon
	if [ ! -f "/usr/share/applications/minecraft.desktop" ]; then #failsafe
		cat >> /usr/share/applications/minecraft.desktop <<-EOL
		[Desktop Entry]
		Name=Minecraft
		GenericName="Best Game In the World"
		Exec=minecraft
		Terminal=false
		Icon=/opt/minecraft/Grass.png
		Type=Application
		Categories=Games		
		EOL
	fi
	
	#making the file for minecraft
	if [ ! -f "/usr/bin/minecraft" ]; then #failsafe
		cat >> /usr/bin/minecraft <<-EOL
		#!/bin/bash
		cd /opt/minecraft
		java -Xmx1G -Xms1G -cp ./minecraft.jar net.minecraft.LauncherFrame
		EOL
	
	fi

}


#check if directory of Minecraft exist
if [ ! -d "/opt/minecraft" ]; then
	mkdir "$dir"
fi
cd "$dir"

#checking if Minecraft is installed
mine="minecraft.jar"
if [ ! -f "$mine" ]; then
	echo "Downloading Minecraft client:"
	curl -O https://s3.amazonaws.com/MinecraftDownload/launcher/minecraft.jar

	echo "Installing Minecraft to your computer:"
	makeInstall #the install magic
fi


echo "So I believe everything is done. Happy gaming :)"

exit