getgid - get the real group ID
The getgid() function shall return the real group ID of the calling process.
The getgid() function shall always be successful and no return value is reserved to indicate an error.
No errors are defined.
getegid, geteuid, getuid, setegid, seteuid, setgid, setregid, setreuid, setuid
XBD <sys/types.h>, <unistd.h>
First released in Issue 1. Derived from Issue 1 of the SVID.
In the SYNOPSIS, the optional include of the <sys/types.h> header is removed.
The following new requirements on POSIX implementations derive from alignment with the Single UNIX Specification:
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