In this video, we're going to see how to run child processes within your application. In our application, we will run a command called ls (in Linux) and dir (in Windows). The ls and dir command is an application that simply lists all the files within a given directory. Thus, from our current directory, it will give us hello.txt and main.go files. We are going to run this ls utility app within our application. So, the first thing we have to do is to use the exec package, which provides commands. We are going to use the ls command and not pass any argument right now. This will return the command itself. You will find two functions; one is start and the other one is run.
Note
The difference between start and r is, if you look at the documentation, you'll see that run starts the specified command and waits for it to complete. Based on your requirements, you can choose start or run.
We also have PID, which is the process ID, and we are going to output that to the console...