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5.8 Information Commands

Most of these commands print information about the current frame or function, but a few show general information.

— Debugger Command: help
— Debugger Command: ?

Displays a synopsis of debugger commands.

— Debugger Command: describe

Calls describe on the current function and displays the number of local variables.

— Debugger Command: print

Displays the current function call as it would be displayed by moving to this frame.

— Debugger Command: error

Prints the condition given to invoke-debugger and the active proceed cases.

— Debugger Command: backtrace [n]

Displays all the frames from the current to the bottom. Only shows n frames if specified. The printing is controlled by *debug-print-variable-alist*.