Use maven to update script

I have a Java project that's paired with a bash script to make it easier to deploy on Linux. The script is a lot more complicated than this, but the part that matters is a section like this:

directory="/default/install/directory"jarName = "myApp-0.0.1.jar"command="/usr/bin/java -DARG=$argValue -jar $directory/$jarName"

When I update the version to 0.0.2, I would like maven to automatically change this line in my script, simply to:

jarName = "myApp-0.0.2.jar"

I'm sure this would involve maven-release-plugin in some way - possibly with sed -i, but my development machine is Windows so such tools are not so readily available (though I do use cygwin) - but I'm not really sure how. Thanks!