Setting environment variables, especially http_proxy and ftp_proxy
I have installed the universal binary for R-2.2.1 on an Intel Mac that is behind a firewall. How do I ensure that the http_proxy environment variable is set when I start R? I understand that I must do this before the first time I use the internal network code. I tend to work with a private library (Martin: I really do mean "library", not "package" :-) as the first element in the search path for packages so it would be helpful if I could learn how to set R_LIBS as well.