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Almost all UNIX operating systems have voluminous documentation known as manual pages. Every page is a document. If one wants to read a page then the command man at a shell prompt will show the manual, for example, "man ftp". Pages are referred by using the notation "name(manual-section)", for example time(1).

Man Page :: Unix Man Pages - getegid

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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