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Recursively check the difference between files in shell

I am trying to recursively check the difference between files in 2 separate directories in shell. NOTE :- both directories are identical only the root name is different In the diagram shown above I want to “diff ROOT_A/A.md5 ROOT_B/A.md5” recursively in my script file for all files in the root dir…

Reverse engineering a zImage

So I have a custom kernel for an embedded arm device which I had worked on some time ago. I’ve revisited the project but since have reinstalled Ubuntu on my development machine. I can’t compile a new zImage correctly as before. I have found an old SD which card which has the correctly compiled and…

Why if statement always is true? [closed]

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 5 y…

Wait for signal, then continue execution

I am trying to make a program that suspends its execution until a signal arrives. Then, after the signal arrives I just want my code to continue its execution from where it was. I don’t want it to execute a function handler or whatsoever. Is there a simple way of doing this? I have been struggling for a…