Your specific scenario is fairly easy to implement in batch. I'm assuming you want to preserve the entire line that contains jar href.
You can do it but editing XML it isn't very easy using DOS, and in order to make it happen, you are going to first need to start your batch file like this.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.