The read() function reads data previously written to a file. If any portion of a regular file prior to the end-of-file has not been written, read() shall return ...
The read() function is a low-level file manipulation function used to perform read operations on a file. It can be accessed by using the unistd.h library ...
read(2) System Calls Manual read(2). NAME top. read - read from a file descriptor. LIBRARY top. Standard C library (libc, -lc). SYNOPSIS top. #include <unistd.h> ...