Chapter 4.  Quick Programming with Scripts and System Daemons

In the previous chapter, we dealt with native compilation and cross-compilation and saw that the C language is actually a must-know for an embedded developer; however, sometimes, it's better to use a script or an already written daemon to quickly solve a problem.

In this chapter, we're going to take a look at some common and useful system tools we can use in an embedded system to constantly execute a controlling/monitoring procedure. These kinds of software are usually called daemon. In Unix terminology, a daemon is a computer program that runs as a background process rather than being under the direct control of an interactive user, so they are perfect to execute a controlling/monitoring procedure. In this scenario, we're going to take a look at some existing daemons ready-to-use and that we can use to implement some repetitive and common tasks.

Then, we will look at how to install and use some common...