use jstock, eclipsetrader or grism for that from sourceforge.net
there's also a link which any guy who wants to code it up...
http://blog.underdog-projects.net/2009/02/bringing-the-yahoo-finance-stream-to-the-shell/
there's also a link which any guy who wants to code it up...
http://blog.underdog-projects.net/2009/02/bringing-the-yahoo-finance-stream-to-the-shell/