How to unpackage and repackage a WAR file

Question

I have a WAR file. I would like to open it, edit an XML file, remove some jars and then re-package it.

I used WINRAR to open the WAR file and I removed some Jars and

Answer 1

copy your war file to /tmp now extract the contents:

cp warfile.war /tmp
cd /tmp
unzip warfile.war
cd WEB-INF
nano web.xml (or vim or any editor you want to use)
cd ..
zip -r -u warfile.war WEB-INF

now you have in /tmp/warfile.war your file updated.