In this chapter, you will learn:
How to get the arguments from the command line used to launch the program
How to return a status code to the operating system when exiting the program
How to get and set the process environment variables
Techniques and best practices to handle runtime errors
How to read from the console keyboard and how to write to the console screen
How primitive types are converted to string
How to read or write a binary file
How to read a text file a line at a time
Command-Line Arguments
The most basic form of input of a program is through the command line.
let command_line: ...
