Debugger and Compiler in Emacs

Question 1

how to bring up meta command line in Emacs

Answer 1

esc x
or
alt x

Question 2

command to start debugger

Answer 2

esc x

gud-gdb

Question 3

command for setting break point at main

Answer 3

b main

Question 4

command to run debugger

Answer 4

run

Question 5

command for next line

Answer 5

n

Question 6

command for continue to breakpoint

Answer 6

c

Question 7

command for quit debugger

Answer 7

quit

Question 8

keyboard to bring up full screen the window in which the cursor is

Answer 8

ctrl x 1