Overview
	Issuing WDB Commands
	Shell Commands
	Using the Command History
	Getting Help on WDB Commands
	Tips
	See Also

Overview

The Command view lets you send commands directly to WDB and view the output from these commands. It also displays messages and warnings associated with the debug process. If you issue a command that has a corresponding GUI action, the command results are reflected in the GUI. For example, if you set a breakpoint in the Command view, a breakpoint marker (a solid red octagon) appears in the left column of the GUI's Source and Disassembly views.

A history of commands you have executed during the current debug session is available from a drop-down list or by scrolling with the keyboard. You can repeat these commands as well as edit them.

Issuing WDB Commands

To issue a WDB command

1. In the main window, click the Command tab.
2. In the Command input area, type a WDB command, and then press Enter. For example, to print the value of expression "a", type:
   print a
3. View the echoed command and its output in the Command output area, directly above the input area.

Shell Commands

With this version of WDB GUI , when you issue the shell command with no parameters a new window pops up, depending on the TERM environment variable. If the value of TERM is not set to dtterm, hpterm or xterm, then the default value of xterm is passed to the shell command. The TERM value used is displayed in the Command window:

(gdb) shell xterm

In this shell window, you can perform all shell operations. When you issue the exit command, the shell window closes and the prompt returns to WDB GUI windows.

While the shell window is active, any debugger actions requested will be queued and executed when the shell window exits. The (gdb) command prompt will also be disabled while the shell window is active.

Using the Command History

A history of commands you have executed during the current debug session is available in a drop-down list. You can traverse the list and repeat a command. You can also use key combinations to edit a command or scroll through previous commands on the command line.

To view the command history with the drop-down list:

• Click on the arrow at the right of the input area.
  
  For information on viewing or repeating a previous command, see Key Combinations for the Command History Drop-Down List in the Command View reference topic.

To view and edit commands from the input area:

• Use the key combinations described in Key Combinations for Editing Commands in the Command View reference topic.

Getting Help on WDB Commands

You can list the available WDB commands (and command classes) and access help on these commands. This is useful if you need to explore the functionality of WDB, find the correct syntax for a command, or understand the correct command usage.

To view a list of debugger commands

1. In the Command input area, type help, and then press Enter. A list of topic classes appears in the output area.
2. Type help class name, and then press Enter. A list of commands in that class appears in the output area.

To get help on a specific debugger topic

• In the Command input area, type help command name, and then press Enter. Help on correct command format and usage appears in the output area.

Tips

• You cannot display the Command view in a separate window.
• Use the scroll bars to see all of the information in the output area.
• On the View menu, click Command to quickly bring the Command view to the top.
• Use the pop-up menu Clear to quickly clear the output area.

See Also

• Command View
• Loading a Program and Changing Program Settings