Before moving to more Linux executable-reversing activities, let's explore more tools. gdb seems fine, but it would have been better if we were able to debug it interactively, using visual tools for debugging. In Chapter 5, Tools of Trade, we introduced the Radare, under the Disassemblers and Debuggers sections, as a tool that is capable of doing both disassembly and debugging. So, let's get a feel for using Radare.