This post was inspired by wanting to go through and rename a function in all places that I used it a set of Scheme files. While it is easy enough to replace all instances of a word in a single file while using Vim, in this instance I created a script for Powershell that would allow me to change all instances in a list of files. While I am not at a point where I am doing a bunch of refactoring to any code, I may be some day and I think that a script like this could potentially be very helpful.