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