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You are here: manpages





GETGID

Section: Linux Programmer's Manual (2)
Updated: 2010-11-22
Index Return to Main Contents
 

NAME

getgid, getegid - get group identity  

SYNOPSIS

#include <unistd.h>
#include <sys/types.h>

gid_t getgid(void);
gid_t getegid(void);  

DESCRIPTION

getgid() returns the real group ID of the calling process.

getegid() returns the effective group ID of the calling process.  

ERRORS

These functions are always successful.  

CONFORMING TO

POSIX.1-2001, 4.3BSD.  

NOTES

The original Linux getgid() and getegid() system calls supported only 16-bit group IDs. Subsequently, Linux 2.4 added getgid32() and getegid32(), supporting 32-bit IDs. The glibc getgid() and getegid() wrapper functions transparently deal with the variations across kernel versions.  

SEE ALSO

getresgid(2), setgid(2), setregid(2), credentials(7)  

COLOPHON

This page is part of release 3.81 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
ERRORS
CONFORMING TO
NOTES
SEE ALSO
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