After a long search, I found some open source .c code to do something that would be very helpful to me in developing a program. The problem is that it has line numbers. No C code that I've ever seen uses these. I tried to remove these with BBEdit but couldn't. There's a line that looks like environmental variables for a Unix machine. Did some ancient Unix compiler use line numbers? I've only seen this in BASIC. Is there any convenient way to remove these or am I going to have to edit them out by hand?