It would be nice to have these tools for Linux and have them give return codes for success and fail when running. I would like to create a make file on linux to compile apps. Interestingly the windows versions of these commands do not appear to set ErrorLevel for batch scripting in windows.
Must have done something wrong a year or so ago when I last tested it because the ErrorLevel is working now. Even running C51.EXE with wine under linux returns the error code with $?.