Execute a Java jar file

java -jar [file_name.jar]

Download the installer from http://www.java.com/en/download/manual.jsp

cd /usr/local/
mkdir java
cd java
sh /home/user/location_of_jre_installer/jre-6u3-linux-i586.bin
cd /usr/local/firefox/plugin/	[The folder where firefox is installed]
ln -s /usr/local/java/jre1.6.0_03/plugin/i386/ns7/libjavaplugin_oji.so

The build.xml file to concatenate files using ant. This can be executed using the command ‘ant “ConcatAll”‘

<?xml version="1.0" encoding="UTF-8"?>
<project name = "MyProj" basedir = "." >

	<target name = "ConcatAll" >
		<concat destfile = "final.txt" fixlastline = "yes" >
			<filelist dir = "."
						files = "first_file.txt
								second_file.txt
								third_file.txt"/>
		</concat>
	</target>

</project>