About command line programs

Command line programs run as screens of text only and do not make use of graphics. Because the text interface on most computers is similar, these programs are easier to port to different platforms than graphical/windowing programs. * Access the command prompt. On Windows computers find the MS-DOS Icon. * Use the "cd" command to change directory to the location of your data files. * Enter the commands as described below. Output will be to the text screen. Some commands will also produce file output.