| <HTML> |
| <HEAD> |
| <TITLE>Console Window Help</TITLE> |
| </HEAD> |
| <BODY> |
| <H1>The Console Window</H1> |
| <H3>Overview</H3> |
| <P>The Console Window is perhaps the most powerful tool in the debugger. It |
| provides functionality equivalent to almost all of the debugger's secondary |
| windows, macro definitions, and other more advanced features.</P> |
| |
| <P>Console Window topics: |
| <UL> |
| <LI><UL><A HREF="#display">Console Display</A> |
| <LI><A HREF="#display_cmd">Executing Commands</A> |
| <LI><A HREF="#display_hlp">Getting Help</A> |
| </UL> |
| </UL></P> |
| |
| <H3><A NAME="display">Console Display</A></H3> |
| The Console Display is simply a scrolled window in which the debugger prompt |
| appears. By default, the prompt is set to "(gdb) ", but it may be changed via a |
| command line option. |
| |
| <P>To <A NAME="display_cmd">execute commands</A> in the console window, simply enter |
| the command in the display. If the debugger is busy, the message "Error: The |
| debugger is busy." appears informing the user that the command was not accepted.</P> |
| |
| <P>Whenever a command is executed, the debugger's windows will update to display |
| any new state information. Any output from the command is also echoed to the Console |
| Window for ease of use. If an error occurs, an error message is printed to the Console |
| Window. All error messages appear in the Console Window using a red colored typeface. |
| </P> |
| |
| <P>The Console Window responds to special character commands just as a shell window |
| does: it has a history mechanism which allows the user to scan previously used commands |
| by pressing the up and down arrow keys on the keyboard, jumping to the beginning or |
| end of a line by entering Ctrl-A or Ctrl-E, erasing a line by pressing Ctrl-K, and |
| more. Users familiar with GNU Emacs will recognize these keys as commonly used |
| keystrokes from that editor.</P> |
| |
| <H3><A NAME="display_hlp">Getting Help</A></H3> |
| The Console Window has its own online help system. To access the help system, enter |
| "help" at the prompt and follow the on-screen instructions. For more help, please |
| consult the <!-- What is this really called? --> <I>GDB User's Guide</I>. |
| </BODY> |
| </HTML> |
