gdb.txt

cc -g file.c
gdb a.out
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FIRST NEED TO BREAK THE CODE.
(gdb) b main
Breakpoint 1 at 0x1171: file file.c, line 7.
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(gdb) r	[RUN]
Starting program: /home/codebox/a.out 

Breakpoint 1, main () at file.c:7
7	int main(){
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(gdb) l	[list -> show few lines of code]
2	
3	void fun(int x){
4	    printf("\n %d ",x);
5	}
6	
7	int main(){
8	    int i;
9	
10	    for(i=0;i<5;i++){
11	        fun(i);
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(gdb) f	[Frame]
#0  main () at file.c:7
7	int main(){
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(gdb) n	[NEXT -> next line]
10	    for(i=0;i<5;i++){
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(gdb) print i		[print var_name -> prints variables]
$1 = 0
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(gdb) n
11	        fun(i);
(gdb) step			[step -> for get inside the fun](s is short of step)
fun (x=21845) at file.c:3
3	void fun(int x){
(gdb) 
-----------------------------------------------------------------
(gdb) f		[frame show where I am]
#0  fun (x=0) at file.c:4
4	    printf("\n %d ",x);
-----------------------------------------------------------------
(gdb) backtrace		[activation stack]
#0  fun (x=2) at file.c:4
#1  0x0000555555555190 in main () at file.c:11
(gdb) 
----------------------------------------------------------------
(gdb) info b			[show info about breakpoint]
Num     Type           Disp Enb Address            What
1       breakpoint     keep y   0x0000555555555171 in main at file.c:7
	breakpoint already hit 1 time
2       breakpoint     keep y   0x0000555555555171 in main at file.c:7
	breakpoint already hit 1 time
(gdb) delete 1			[delete breakpoint]