• NAME
  
  getuid, geteuid - get user identity
• SYNOPSIS
  
  #include <unistd.h>
  #include <sys/types.h>
  
  uid_t getuid(void);
  uid_t geteuid(void);
• DESCRIPTION
  
  getuid () returns the real user ID of the calling process.
  geteuid () returns the effective user ID of the calling process.
• ERRORS
  
  These functions are always successful.
• CONFORMING TO
  
  POSIX.1-2001, 4.3BSD.
• NOTES
  
  History In Unix V6 the getuid () call returned "(euid << 8) + uid" . Unix V7 introduced separate calls getuid () and geteuid ().
• SEE ALSO
  
  getresuid(2) , setreuid(2) , setuid(2) , credentials(7)
• COLOPHON
  
  This page is part of release 3.19 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.

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