Learning GDB
- make sure compile with -g: gcc -g file.c -o output
- gdb ./mysort
- ctrl x a ---> open the visual window
- gdb start <arg>
- set break point by using $ break <line number>
- s/step
- p argv ==> check values
- continue: keep going until the next break point
- set follow-fork-mode child ----> to follow child process!!!