Learn Linux Shell Scripting - Fundamentals of Bash 4.4

Redirecting output

Now that the theory on input, output, and file descriptors should be clear, we're going to see how we can use these techniques in our command-line and scripting adventures.

It is in fact pretty hard to write shell scripts without using redirection; we've actually used redirection a couple of times in the book before this chapter, because we really needed it to get our stuff done at that time (file-create.sh in Chapter 8, Variables and User Input, for example).

Now, let's get some real experience with redirection out of the way!