如何在bash中使用单个循环处理多个级别的结果？

I need to create a certain loop which will to some extend describe a network with all its nodes. This loop will be part of something else which is not relevant to the topic. As you know in a network one node is connected to another and so on. I have all these nodes in separate files and I need to process them with a loop. Each loop will produce more results within which i need to perform more loops and the number increases exponentially until breaking point is reach. Now i know how to solve this problem with like 50 nested loop's which look like this:I need to create a certain loop which will to s