8 INPUT/OUTPUT
This chapter will teach you how to perform input/output (I/O) operations to read data from, or write data to, terminals and filesystems. Information can enter a program via command line arguments or the environment and exit it via its return status. However, most information typically enters or exits a program through I/O operations. We’ll cover techniques that use C standard streams and POSIX file descriptors. We’ll start by discussing C standard text and binary streams. We’ll then cover different ways of opening and closing files using C standard library and POSIX functions.
Next, we’ll discuss reading and writing characters ...
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