Here’s how to install and use JStock, a free stock market software, in Linux Mint / Ubuntu – 1. Issue the following command at the terminal to ensure that you have Java Run Time installed – sudo apt-get install sun-java6-jre 2. Issue the following command at the terminal to download the JStock setup – wget http://downloads.sourceforge.net/jstock/jstock-1.0.6c-bin.zip 3. After...