CLOSE(2) CLOSE(2)
NAME
close - close a file
SYNOPSIS
close(fildes)
DESCRIPTION
Close closes the file associated with a file descriptor.
Files are closed upon termination of a process, but since
there is a limit on the number of open files per process,
close is necessary for programs which deal with many files.
It is possible to arrange for files to be closed by exec(2);
see FIOCLEX in ioctl(2).
SEE ALSO
creat(2), open(2), pipe(2), exec(2), ioctl(2)
DIAGNOSTICS
Zero is returned if a file is closed; -1 is returned for an
unknown file descriptor.