1GETPGRP(3P)                POSIX Programmer's Manual               GETPGRP(3P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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NAME

13       getpgrp — get the process group ID of the calling process
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SYNOPSIS

16       #include <unistd.h>
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18       pid_t getpgrp(void);
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DESCRIPTION

21       The getpgrp() function shall return the process group ID of the calling
22       process.
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RETURN VALUE

25       The  getpgrp()  function shall always be successful and no return value
26       is reserved to indicate an error.
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ERRORS

29       No errors are defined.
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31       The following sections are informative.
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EXAMPLES

34       None.
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APPLICATION USAGE

37       None.
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RATIONALE

40       4.3 BSD provides a getpgrp() function that returns the process group ID
41       for  a  specified process. Although this function supports job control,
42       all known job control shells always specify the  calling  process  with
43       this  function.  Thus, the simpler System V getpgrp() suffices, and the
44       added complexity of the 4.3 BSD getpgrp() is provided by the XSI exten‐
45       sion getpgid().
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FUTURE DIRECTIONS

48       None.
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SEE ALSO

51       exec,  fork(),  getpgid(), getpid(), getppid(), kill(), setpgid(), set‐
52       sid()
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54       The Base Definitions volume of POSIX.1‐2008, <sys_types.h>, <unistd.h>
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57       Portions of this text are reprinted and reproduced in  electronic  form
58       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
59       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
60       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
61       cal and Electronics Engineers,  Inc  and  The  Open  Group.   (This  is
62       POSIX.1-2008  with  the  2013  Technical Corrigendum 1 applied.) In the
63       event of any discrepancy between this version and the original IEEE and
64       The  Open Group Standard, the original IEEE and The Open Group Standard
65       is the referee document. The original Standard can be  obtained  online
66       at http://www.unix.org/online.html .
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68       Any  typographical  or  formatting  errors that appear in this page are
69       most likely to have been introduced during the conversion of the source
70       files  to  man page format. To report such errors, see https://www.ker‐
71       nel.org/doc/man-pages/reporting_bugs.html .
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75IEEE/The Open Group                  2013                          GETPGRP(3P)
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