Create a GUI that will execute system commands.

• The command window is writable. The user can enter text (commands) in it. For example: ls, pwd, ...
• The results window is not writeable. The results of executing the command is displayed here.
• The four buttons are:
  • exit program
  • execute command (in command window)
  • clear the command window
  • clear the results window
• Pressing the execute button sends the command to the system to execute
• There should be a title for each window
• There should be a title for the program
• The program (and windows) can expand (and contract) horizontally and vertically (using the mouse)
• Each window should have a vertical scroll bar
• Each window should word-wrap

Below is an example of what it might look like.