$Id: gdb.txt,v 1.2 1997/07/08 16:35:57 libsq Exp $

			GDB COMMANDS

There are many more gdb commands, but these are some of the most common.

help
	Lists help options.  Remember this command, if nothing else.

run
	starts the program.  If no breakpoints are set, it's just as
	if you run the program from the prompt. 

list <arg>
	- If <arg> is omitted, lists the code about to be executed.
	- If <arg> is the name of a function, lists the code for that function.
	- If <arg> is a line number, list the code starting at that line
		number in the current file.

break <line#>
	Sets a breakpoint at given line number.  When the program
	reaches to that line number, it will stop and return control
	to the user in gdb.  At that point, you can display or modify
	the value of the variables in the program. 

where
	Shows where in the program you are, and what sequence of
	function calls led to this location.

break <function name>
	Similar to "break <line#>, but when starting the given function.

continue
	Resume execution after a breakpoint has been reached.

delete <break#>
	Eliminates the specified list of break points.  If no breakpoints
	are specified, all are deleted.

print <expr>
	Displays the value of the given expression.  You can either
	give a variable name or a simple C expression (for example, if
	a, b, c are variables in the current function, you can do
	"print (a + b - c)".)

next
	Executes the next line of code (don't confuse this with the
	"lines" displayed by "list").  If the next line of code is a
	function call, the function is executed and gdb will continue
	to the next line of code after the call. 

step
	Similar to next, except that step actually goes inside function calls. 

continue
	Will continue to run the program from the current line of code. 

set <var> <expr>
	Sets variable <var> to the value of <expr>.