Terminal初心者質問スレ
http://pc.2ch.net/test/read.cgi/mac/1012636223/

PATHの通し方
http://pc.2ch.net/test/read.cgi/mac/1012636223/498
Terminalで
% echo 'set path = ( ${HOME}/bin /usr/local/bin $path)' >> ~/.cshrc
% source ~/.cshrc