Step 1: Fire up the terminal
Step 2: cd to the directory where the .war resides. In this case I moved it from the Tomcat directories to /sample beforehand.
# cd /sample
Step 3: Unpack the .war with the following command:
# jar -xvf sample.war
The contents of the .war are unpacked for you and placed in the same folder as the .war file.
Piece of Cake!!