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Gdb

Command Description
Compile Debug gcc -Wall -o myprogram myprogram.c
gcc -g -Wall -o myprogram myprogram.c
Start
 gdb ./myprogram
Args
 gdb --args myprogram param1 param2
Commands
 gdb --commands=FILE myprogram
List
 list
Run
 run [args]
cd
 cd [path]
List
 list [file]:[position]
Args
 set args [arg1] [arg2] [..]
Stop/Exec
 Ctrl+C / cont
Backtrace
 backtrace
Disassemble
 set disassembly-flavor intel/att
disassemble function
Breakpoints
 break [linenumber|function|address]
info break
delete [nr] [nr] [..]
ignore [nr] [times]
disable [nr] [nr] [..]
enable [nr] [nr] [..]
commands [nr]
Stepping
 step [TIMES]
next [TIMES]
Print
 print (char)*string / print s[0]
print strlen(s)
/[count][fmt]
o, Octal
x, Hexidecimal
d, Decimal
u, Usigned decimal
t, Binary
f, Float
a, Address
i, Instruction (processor)
c, Character
s, String
Examine Memory
 x
Display
 display [EXPR]
undisplay
disable display
enable display
Changing Data
 set variable [EXPR]
set [EXPR]
Help
 help
help [command]/help [subtopic]
Settings
 set args [ARG] [ARG] [..]
set follow-fork-mode [parent|child|ask]
set listsize [NR]
set logging [SUBOPTION]/set logging file [FILE]/set logging on
set print [SUBOPTION]/set print pretty on