in reply to File Input and Output

Ah good stuff here, I have succesfully opened my file and echoed its output, now I want to figure how to read in a number of files, and replace a value within each file, these files are in multiple directories..with differing account codes as names, the files themselves are named with the current date.txt I need to read in about 80 directories, parsing each file for current date, and modify the files to remove this "bad" value then re-write to original filename..