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echo commands in unix shell script

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Last Modified: 2013-12-26
I am working on a very simple script and want it to output the command so I can see what is going on.
Assume I have this very simple script.  I want to see it actually say "export PATH=$PATH:/usr/java/jdk1.6.0_01/bin" in the terminal window as it runs not just the output from the commands.  In DOS I have to expilixtly say echo off to hide this but can't seem to find a way to turn it on in UNIX.

#!/bin/bash
clear
export PATH=$PATH:/usr/java/jdk1.6.0_01/bin
cd /var/glassfish-v2ur1-b09d/domains/domain1/config/
keytool -delete -alias s1as -keystore keystore.jks

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