read man7
R_OK, W_OK, and X_OK test whether the file exists and grants read, write, and execute permissions, respectively. The check is done using the calling process's ... ,The file descriptor that represents the read side of a pipe (rfd) is registered on the epoll instance. 2. A pipe writer writes 2 kB of data on the write side of the pipe. ,fgetc() reads the next character from stream and returns it as an unsigned char cast to an int, or EOF on end of file or error. getc() is equivalent to fgetc() except ... ,The return value of open() is a file descriptor, a small, nonnegative integer that is used in subsequent system calls (read(2), write(2), lseek(2), fcntl(2), etc.) ... ,read() attempts to read up to count bytes from file descriptor fd into the buffer starting at buf. On files that support seeking, the read operation commences at the ... ,read() attempts to read up to count bytes from file descriptor fd into the buffer starting at buf. ,The read utility shall read a single line from standard input. By default, unless the −r option is specified, <backslash> shall act as an escape character. ,The read() function shall attempt to read nbyte bytes from the file associated with the open file descriptor, fildes, into the buffer pointed to by buf. The behavior of ... ,The readv() system call reads iovcnt buffers from the file associated with the file descriptor fd into the buffers described by iov ("scatter input"). The writev() system ... ,POSIX requires that a read(2) that can be proved to occur after a write() has returned will return the new data. Note that not all filesystems are POSIX conforming.
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 read man7 相關參考資料
access(2) - Linux manual page - man7.org
R_OK, W_OK, and X_OK test whether the file exists and grants read, write, and execute permissions, respectively. The check is done using the calling process's ... http://man7.org epoll(7) - Linux manual page - man7.org
The file descriptor that represents the read side of a pipe (rfd) is registered on the epoll instance. 2. A pipe writer writes 2 kB of data on the write side of the pipe. http://man7.org fgetc(3) - Linux manual page - man7.org
fgetc() reads the next character from stream and returns it as an unsigned char cast to an int, or EOF on end of file or error. getc() is equivalent to fgetc() except ... http://man7.org open(2) - Linux manual page - man7.org
The return value of open() is a file descriptor, a small, nonnegative integer that is used in subsequent system calls (read(2), write(2), lseek(2), fcntl(2), etc.) ... http://man7.org read(2) - Linux manual page - man7.org
read() attempts to read up to count bytes from file descriptor fd into the buffer starting at buf. On files that support seeking, the read operation commences at the ... http://man7.org read(2): read from file descriptor - Linux man page
read() attempts to read up to count bytes from file descriptor fd into the buffer starting at buf. https://linux.die.net read.1p - Linux manual page - man7.org
The read utility shall read a single line from standard input. By default, unless the −r option is specified, <backslash> shall act as an escape character. http://man7.org read.3p - Linux manual page - man7.org
The read() function shall attempt to read nbyte bytes from the file associated with the open file descriptor, fildes, into the buffer pointed to by buf. The behavior of ... http://man7.org readv(2) - Linux manual page - man7.org
The readv() system call reads iovcnt buffers from the file associated with the file descriptor fd into the buffers described by iov ("scatter input"). The writev() system ... http://man7.org write(2) - Linux manual page - man7.org
POSIX requires that a read(2) that can be proved to occur after a write() has returned will return the new data. Note that not all filesystems are POSIX conforming. http://man7.org |