Guarda che bel script che ho fatto !
Scarica java e configura firefox

codice:
#!/bin/bash
#Install java and configure firefox

function configure() {

	firefox_path="$HOME/.mozilla/plugins"
	
	if [ ! -e "$firefox_path" ]; then
   	   	echo "Firefox directory plugin ? "
   	   	read path
	
   	   	if [ -z "$path" ]; then
      	   	   	echo "Dont know where firefox is"
      	   	   	exit 1
   	   	fi
   	
   	   	firefox_path="$path"
	fi
	
	java_path="$java_dir/jre1.6.0_06/plugin/i386/ns7"
	
	if [ ! -e "$java_path" ]; then
   	   	echo "Java directory plugin [Probably is in /usr/java/jre1.6.0 or similar] ? "
   	   	read path
		
   	   	if [ -z "$path" ]; then
      	   	   	echo "Dont know where java is"
      	   	   	exit 1
   	   	fi
   	
   	   	java_path="$path"
	fi

	echo "[*] Making symbolics link"
	cd "$firefox_path"
	sudo ln -s "$java_path/libjavaplugin_oji.so"

	echo "All Done !"
	
}

url="http://javadl.sun.com/webapps/download/AutoDL?BundleId=20279"
filename="jre.bin"
java_dir="/usr/java"

if [ ! -e "$filename" ]; then
   wget -c "$url" -O "$filename" -w 1
fi

if [ ! -e "$java_dir" ]; then
   	echo "[*] Making $java_dir"
   	sudo mkdir "$java_dir"
else
   	echo "$java_dir already exist, skip to firefox configuration ? (yes/no) ?"
   	read answer
   
      	if [ "$answer" == "yes" ]; then
   	   	configure
   	   	exit 0
   	fi

   	echo "Removing $java_dir and reinstall all"
	rm -rd "$java_dir"

fi

echo "[*] Moving to $java_dir"
sudo cp "$filename" "$java_dir"
cd "$java_dir"

echo "[*] Chance permissions"
sudo chmod a+x "$filename"

echo "[*] Launching $filename"
sudo "./$filename"

sudo rm "$filename"

echo "Configure firefox ? "
read answer

if [ "$answer" == "yes"]; then
	configure
   	exit 0
fi
Salvalo come java_installer.sh e poi:
codice:
sh java_installer.sh