Beginning Rust: Get Started with Rust 2021 Edition

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

C. MilanesiBeginning Rusthttps://doi.org/10.1007/978-1-4842-7208-4_17

17. Input/Output and Error Handling

Carlo Milanesi¹  

(1)

Bergamo, Italy

 

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 convert a string to a primitive type

• How to read or write a binary file

• How to read a text file, a line at a time ...