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75 lines
3.4 KiB
HTML
75 lines
3.4 KiB
HTML
15 years ago
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<HTML>
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<HEAD>
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<TITLE>Console Window Help</TITLE>
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</HEAD>
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<BODY>
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<CENTER><H2>The Console Window</H2></CENTER>
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<P>The Console Window provides the traditional command-line interface to GDB.
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It is very similar to the command-line you get when GDB is run with "-nw".</P>
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<UL>
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<LI><A HREF="#display">Console Display</A></LI>
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<LI><A HREF="#editing">Editing Commands</A></LI>
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<LI><A HREF="#history">History Commands</A></LI>
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<LI><A HREF="#display_hlp">Getting Help</A></LI>
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</UL>
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<H4><A NAME="display">Console Display</A></H4>
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The Console Display is simply a scrolled window in which the debugger prompt
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appears. By default, the prompt is set to "(gdb) ", but it may be changed via a
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command line option.
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<P>To execute commands in the console window, simply enter
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the command in the display. If the debugger is busy, the message "Error: The
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debugger is busy." appears informing the user that the command was not accepted.</P>
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<P>Whenever a command is executed, the debugger's windows will update to display
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any new state information. Any output from the command is also echoed to the Console
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Window for ease of use. If an error occurs, an error message is printed to the Console
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Window. All error messages appear in the Console Window using a red typeface.
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</P>
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<BR>
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<H4><A NAME="editing">Editing Commands</A></H4>
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<P>The Console Window shell has many powerful features to help edit commands.</P>
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<UL>
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<LI> Return or Enter causes the command to be executed.
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<LI> Control-A moves the cursor to the beginning of the line.</LI>
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<LI> Control-E moves the cursor to the end of the line.</LI>
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<LI> Control-D or DELETE delete the character to the right of the cursor.</LI>
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<LI> BACKSPACE deletes the character to the left of the cursor.</LI>
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<LI> Control-B or LeftArrow moves the cursor to the left.</LI>
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<LI> Control-F or RightArrow moves the cursor to the right.</LI>
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<LI> Control-K deletes everything to the right of the cursor.</LI>
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<LI> Control-U deletes the text between the cursor and the start of the line.</LI>
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<LI> Control-W deletes the previous word</LI>
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<LI> END deletes the whole line.</LI>
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<LI> The mouse may also be used to position the cursor and cut and paste.</LI>
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</UL>
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<H4><A NAME="history">History Commands</A></H4>
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<UL>
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<LI> Conrol-P or UpArrow recalls the previous command.</LI>
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<LI> Conrol-N or DownArrow recalls the next command.</LI>
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<LI> Shift-UpArrow or Control-UpArrow will search through previous commands
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for commands that start with the same characters as the current line. For
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example, if you type "pr" and hit Shift-UpArrow, it may find commands in the
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history such as "print foo" or "print sol[x]". Each time you search it will
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go back further in the history. If nothing is on the current line, it
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acts just like Control-P or UpArrow.</LI>
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<LI> Shift-DownArrow or Control-DownArrow work in the opposite direction of
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Shift-UpArrow and Control-DownArrow. </LI>
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</UL>
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<BR>
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<H4><A NAME="display_hlp">Getting Help</A></H4>
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The Console Window has its own online help system. To access the help system, enter
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"help" at the prompt and follow the on-screen instructions. For more help, please
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consult the <!-- What is this really called? --> <I>GDB User's Guide</I>.
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</BODY>
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</HTML>
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