[Here](https://gist.github.com/deadmoo83/fc7a82a7e0b06d8ca45acab9e3cd90c2) is a gist with an angr script that does it without gdb and automates the entire process.

Here is a gist with an angr script that does it without gdb and automates the entire process.

https://gist.github.com/deadmoo83/fc7a82a7e0b06d8ca45acab9e3cd90c2