Subversion (svn) under proxy in Linux

Accessing internet in network which using proxy sometimes make me to modify any configuration of application. Tonight I'm connected to the network which using proxy and I'm trying to "checkout" using subversion and I always get ERROR message, arrrrrrgggghhhh....After searching about that problem, finally I found the solution for using subversion under network proxy. You only need to modify subversion configuration file, the file configuration is located under your home directory in hidden directory.

tnto@tnto-laptop$vim ~/.subversion/servers

And then modify the file above with the suitable values of proxy address and proxy port used in your network