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Created page with "<strong>DUP</strong> ==SYNOPSIS== #include <unixio.h> int dup(int fd) ==DESCRIPTION== Given a file descriptor, such as returned by <strong>open</strong>(), this ro..."
<strong>DUP</strong>
==SYNOPSIS==
#include <unixio.h>
int dup(int fd)
==DESCRIPTION==
Given a file descriptor, such as returned by <strong>open</strong>(),
this routine will return another file descriptor which
will refer to the same open file. -1 is returned if
the fd argument is a bad descriptor or does not refer
to an open file.
==SEE ALSO==
open, close, creat, read, write
==SYNOPSIS==
#include <unixio.h>
int dup(int fd)
==DESCRIPTION==
Given a file descriptor, such as returned by <strong>open</strong>(),
this routine will return another file descriptor which
will refer to the same open file. -1 is returned if
the fd argument is a bad descriptor or does not refer
to an open file.
==SEE ALSO==
open, close, creat, read, write
