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RENAME(2)                  Linux Programmer¡¯s Manual                RENAME(2)

NAME
      rename - change the name or location of a file

SYNOPSIS
      #include <stdio.h>

      int rename(const char *oldpath, const char *newpath);

DESCRIPTION
      rename renames a file, moving it between directories if required.

      Any other hard links to the file (as created using link(2)) are unaffected.

      If  newpath already exists it will be atomically replaced (subject to a few conditions - see ERRORS below), so
      that there is no point at which another process attempting to access newpath will find it missing


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