gcc -g gdb_example.c -o gdb_ex gdb gdb_ex run break main info breakpoints run list print /x array x /20x array step step step print /x array x /20x array step 3 print /x array x /20x array step 12 print /x array x /20x array print /x &array[2] x /12x 0x7fffffffe068 (use address of array[2], it may be different for you) step 15 print /x array x /20x array continue quit