12.2. Basic file operations
The built-in class File provides the facilities for manipulating files in Ruby. File is a subclass of IO, so File objects share certain properties with IO objects, although the File class adds and changes certain behaviors.
We’ll look first at basic file operations, including opening, reading, writing, and closing files in various modes. Then, we’ll look at a more “Rubyish” way to handle file reading and writing: with code blocks. After that, we’ll go more deeply into the enumerability of files, and then end the section with an overview of some of the common exceptions and error messages you may get in the course of manipulating files.
12.2.1. The basics of reading from files
Reading from a file can be performed one ...
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