= PROGRAMS

+-------------------------------------------------------------------------------+
| program	| flags		| args		| description			|
+---------------|---------------|---------------|-------------------------------+
| rabin2	| -Ss		| ./bof.elf	| get symbol information	|
|		|		|		| like function addresses	|
+---------------|---------------|---------------|-------------------------------+
| r2		| -wAAf		| ./bof.elf	| analyze a binary (static)	|
+---------------|---------------|---------------|-------------------------------+
| cat		|		| ./bof.s	| read the contents of the 	|
|		|		|		| source file			|
+---------------|---------------|---------------|-------------------------------+
| objdump	| -d		| ./bof.elf	| disassemble a binary		|
+---------------|---------------|---------------|-------------------------------+
| grep		| -e		|  string	| grab text where a string 	|
|		|		|		| occurs, non case sensitive	|
+---------------|---------------|---------------|-------------------------------|
| curl		| 		| url		| get an http response from 	|
|		|		|		| from the provided url and	|
|		|		|		| output to stdout or a file	|
|		|		|		| via the --output=file flag	|
+---------------|---------------|---------------|-------------------------------+
| printf	|		| string	| print the provided string	|
+---------------|---------------|---------------|-------------------------------+
| chmod		| +x		| ./bof.elf	| add execute permission	|
+---------------|---------------|---------------|-------------------------------|
| lldb		| 		| ./bof.elf	| execute the program to debug	|
+-------------------------------------------------------------------------------+

= UTILITIES

+-------------------------------------------------------------------------------+
| characters (s)	| format		| use case			|
+-----------------------|-----------------------|-------------------------------+
| | (pipe)		| cmd1 | cmd2		| "pipe" the output from cmd1 	|
|			|			| into input for cmd2		|
+-----------------------|-----------------------|-------------------------------+
| ./			| ./<file>		| execute a LOCAL (accessable 	|
|			|			| from the current working	|
|			|			| directory) file.		|
+-------------------------------------------------------------------------------+

= DEBUGGER COMMANDS (LLDB)

+-------------------------------------------------------------------------------+
| command	| subcommand	| modifier	| argument	| description	|
+---------------|---------------|---------------|---------------|---------------+
| break		| set		| -a		| <address>	| set a break-	|
|		|		|		|		| point at an	|
|		|		|		|		| address	|
+---------------|---------------|---------------|---------------|---------------|
| run		|		|		|		| run the	|
|		|		|		|		| program	|
+---------------|---------------|---------------|---------------|---------------+
| step		|		|		|		| step forward	|
+---------------|---------------|---------------|---------------|---------------|
| disas		|		| 		|		| disassemble	|
+---------------|---------------|---------------|---------------|---------------|
| x/40xw	|		|		| $<register>	| display memory|
|		|		|		|		| of 40 "words"	|
|		|		|		|		| in hex of a	|
|		|		|		|		| register	|
+-------------------------------------------------------------------------------+

= X64 REGISTERS

+-------------------------------------------------------------------------------+
| name		| description					| subs		|
+---------------|-----------------------------------------------|---------------+
| rax		| general purpose, typically return values here	| eax,ax,al,ah	|
+---------------|-----------------------------------------------|---------------+
| rbx		| base register					| ebx,bx,bl,bh	|
+---------------|-----------------------------------------------|---------------+
| rcx		| counter register, used in loops to count, etc	| ecx,cx,cl,ch	|
+---------------|-----------------------------------------------|---------------+
| rdx		| general purpose / data register		| edx,dx,dl,dh	|
+---------------|-----------------------------------------------|---------------+
| rsi		| source for data copies			| esi,si,sl	|
+---------------|-----------------------------------------------|---------------+
| rdi		| destination register				| edi,di,dl	|
+---------------|-----------------------------------------------|---------------+
| rbp		| base pointer, typically resets at frame	| ebp,bp,bpl	|
+---------------|-----------------------------------------------|---------------+
| rsp		| stack pointer (think: the stack)		| esp,sp,spl	|
+---------------|-----------------------------------------------|---------------+
| r8-r15	| general purpose				| r8d-r15d,	|
|		|						| r8w-r15w,	|
|		|						| r8b, r15b	|
+-------------------------------------------------------------------------------+