Snowblind MORF can find and replace the same piece of text or code accross many files automatically.
First, you are asked to create a list of files, then you enter the text to find and the text to
replace it with, then click the Replace button. The program then searches each file for the text and replaces it if found. You can also preview a file with changes, and more detailed step-by-step instructions are available within the program.

The license of this software is Freeware, you can free download and free use this search tool software.