Data loss takes many different forms and can range from small to large on the impact scale, sometimes whipping out a company if the data is critical or sensitive. Data leaks can also have huge side effects but it is possible to recover but with permanent data loss, you cannot. Data backup and recovery systems can aid you in protecting your business against the many different types of data loss and show us why we such systems should be part of your core goals.
Do you need two-way communication between a parent process and a persistent bash child process? I did when writing the agent for Bakup.io and there weren't many resources out there which detailed a method of doing so.