Code grepping at build time can be useful. Grepping at at runtime, if you can call it that, is also very powerful. If you have a binary, either your company or

Code grepping at build time can be useful. Grepping at at runtime, if you can call it that, is also very powerful. If you have a binary, either your company or a third party one, but don't have the source code easily available, I have used the `strings` program from GNU binutils which shows tokens in binary code, e.g. hardcoded URLs, credentials and so on. It can also be useful for analyzing certain things in memory.