Linux – /dev/mem


Presumably it's somehow related to memory? What would

sudo cat /dev/urandom > /dev/mem

do? Trash all RAM? All non-kernel virtual memory? None of the above?

Best Answer

It provides access to the system's physical memory.

The mem(4) man page explains more about what /dev/mem is.

Yes -- it could cause all sorts of problems. A reboot should fix you, but bad things can happen very easily. Be careful! :-)