opensnoop is a command-line tool that comes preinstalled with Mac OS X allowing you to see what’s being modified in your filesystem. If you Google some tutorials on it, you’ll see that you can track a particular process name like Safari with code like

but if you try to do it with a process name that has a space in it, like Google Chrome, you’ll get a token too large, exceeds YYLMAX error.

The only fix I could find for it was in Italian. Here’s the original page, and then here’s the Google Translate (to English) version of that page.

It involves editing the actual binary file, so make sure you back it up first. If you edit it using nano, you can use the -B parameter to make an automatic backup first:

and then you’re just changing these lines

to look like these lines instead:

You should then be able to run process names that have spaces in them. For example,

or