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1.1 root 1: .\" Copyright (c) 1983 Regents of the University of California.
2: .\" All rights reserved. The Berkeley software License Agreement
3: .\" specifies the terms and conditions for redistribution.
4: .\"
5: .\" @(#)getgid.2 6.2 (Berkeley) 1/7/86
6: .\"
7: .TH GETGID 2 "January 7, 1986"
8: .UC 5
9: .SH NAME
10: getgid, getegid \- get group identity
11: .SH SYNOPSIS
12: .nf
13: .ft B
14: #include <sys/types.h>
15: .PP
16: .nf
17: .ft B
18: gid = getgid()
19: gid_t gid;
20: .PP
21: .ft B
22: egid = getegid()
23: gid_t egid;
24: .fi
25: .SH DESCRIPTION
26: .I Getgid
27: returns the real group ID of the current process,
28: .I getegid
29: the effective group ID.
30: .PP
31: The real group ID is specified at login time.
32: .PP
33: The effective group ID is more transient, and determines
34: additional access permission during execution of a
35: ``set-group-ID'' process, and it is for such processes
36: that \fIgetgid\fP is most useful.
37: .SH "SEE ALSO"
38: getuid(2), setregid(2), setgid(3)
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