Linux Basic I/O: File Descriptors, dup2 Redirection, and the Everything-Is-A-File Model
File Descriptors: The Array Index Underpinning I/O Disk Files vs In-Memory Open Files Files stored persistently on storage are called disk files. When a file is opened by a process, it is loaded from disk into memory, becoming an in-memory open file. This relationship mirrors that of programs on dis...