How to debug a C/C++ program with GDB command-line debugger

What is the worst part of coding without a debugger? Compiling on your knees praying that nothing will crash? Running the executable with a blood offering? Or just having to write printf(“test”) at every line hoping to find where the problem is coming from? As you probably know, there are not many advantages to coding without a debugger. But the good side is that debugging on Linux is easy.