Quick debugging with gdb

Here's my routine to debug quick stuff on the cli:

$ gcc myprogram.c -g -o myprogram

$ gdb -tui myprogram

(gdb) break main

(gdb) run

You will have the program running and stopped at main. After this, here are the commands I use the most:

Command	Short version	Description
step	s	Step in
next	n	Step over
until 123	unt 123	Run until line 123
info locals	i lo	Prints local variables
print myvar	p myvar	Prints myvar value once
display myvar	disp myvar	Displays myvar value on every execution
undisplay myvar	und myvar	Stops displaying myvar value
set myvar = 0	s myvar = 0	Sets the value of myvar to 0
break 456	b 456	Adds a breakpoint on line 456
info breakpoints	i b	Lists all breakpoints
delete	d	Delete all breakpoints
list main	l main	Go to function main
list foo.c:789	l foo.c:789	Go to file foo.c on line 789
where	whe	Prints where the execution is at right now
kill	k	Kills the current execution

Ctrl-l refreshes the screen if need. focus cmd makes the arrow keys work on the command line, focus src makes it scroll the source code being displayed.

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