Linux GDB command of (b)

gdb command:

1. Prerequisite: The executable file must contain debugging information gcc -g
2. gdb file name - start gdb debugger
3. View Code command
     current file:
       List line number (function name)
     the specified file:
       List the file name: line number (function name)
4. Set breakpoints
     current file:
       b line number (function name)
     the specified file:
       b File name: line number (function name)
     set conditional breakpoints:
       b line number if value == 23
     View breakpoint information:
       info b
     remove breakpoints
       d breakpoint number
5. Start Debugging
     perform only one line of code: start
        continue to stop at the breakpoint: continue - c
     stops directly at the breakpoint: run - r
6. Stepping
     into the body of the function: step - s
       out of the function body: finish (if the loop at the breakpoint, a breakpoint needs to be deleted)
     does not enter the body of the function: next - n
7. Tracking variable
     automatic printing variable information: display variable name

  Cancellation variable track: undisplay Number
     Gets Number: info display
  manually print variable values: print - p

  Acquisition variable corresponding type: ptype

1. Out of the loop: u
2. Quit gdb: quit