Welcome back. In
this set of lessons, I'll demonstrate how files and sub-processes interact with one another and you'll learn how to create sub-processes
in shell scripts. Let's get started.
Especially child processes interacting with
parent processes and vice versa. Part of the issue here is that when a child process starts, it inherits its environment
from the parent, unless certain specific
conditions are met. So when you, a parent
creates this child process, it has to be sure
that the environment is set up the way that it wants. Shell scripts can pose other problems as well
but we will talk about.