dup2
====
:title: Shellcode Compiler Runtime

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int dup2(int oldFd, int newFd);
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Duplicates the file handle `oldFd` such that the new file handle is `newFd`.  If file handle `newFd` is
already open, the existing file handle is closed.  Returns the new file handle.

See also
--------
link:close.html[close],
link:dup.html[dup]
