I am working on a function that replaces the standard DOS command ECHO. I have been searching through the help file for a little while now, and am curious as to how one might go about searching a string for sub strings meeting a certain criteria. So the string would be... Hello $World ...which would be passed from either the command line or an external script. I guess there would be two functions to accomplish this. First setting $World = Planet Second searching the string for any s