finding a different program

sorry if this is in the wrong section, but how do i search for a separate program from another, similar to the shell.getRunningProgram() but for a non running program, i'm trying to access the name of a file to use as a variable for my startup program.
thanks
-songsteel

use fs.list(path) to get a table of the files in a given directory. You can then iterate this table to look for your file. Alternatively, if you're on 1.6 you can just use fs.find
http://computercraft.info/wiki/Fs.find

im meaning to find a specific program that will vary from computer to computer.

Can you tell us the rules for witch file needs to be found? Because "i want to find a file" is a little vague…

Like FlagHacker said, what are you looking for exactly? Do you want to find the file by name? Size? Location? Please be specific

You could look through this thread:
http://www.computercraft.info/forums2/index.php?/topic/18453-verifying-that-two-files-are-the-same/page__hl__verify
which will most likely make no sense whatsoever. But, they did come up with a way to verify that a file is the same as another file hosted on the web (in github specifically). There is probably an easier way, but it would be less accurate.

The only real way you could find different files with the same content across different computers would be to search based on the content of the program, although that may not always be consistent.