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

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the  corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.
NAME
       getpgrp - get the process group ID of the calling process
SYNOPSIS
       #include <unistd.h>
       pid_t getpgrp(void);

DESCRIPTION
       The getpgrp() function shall return the process group ID of the calling
       process.
RETURN VALUE
       The  getpgrp()  function shall always be successful and no return value
       is reserved to indicate an error.
ERRORS
       No errors are defined.
       The following sections are informative.
EXAMPLES
       None.
APPLICATION USAGE
       None.
RATIONALE
       4.3 BSD provides a getpgrp() function that returns the process group ID
       for  a  specified process. Although this function supports job control,
       all known job control shells always specify the  calling  process  with
       this  function.  Thus, the simpler System V getpgrp() suffices, and the
       added complexity of the 4.3 BSD getpgrp() is provided by the XSI exten-
       sion getpgid().
FUTURE DIRECTIONS
       None.
SEE ALSO
       exec(), fork(), getpgid(), getpid(), getppid(), kill(), setpgid(), set-
       sid(),   the   Base   Definitions   volume   of   IEEE Std 1003.1-2001,
       <sys/types.h>, <unistd.h>
COPYRIGHT
       Portions  of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003  by  the  Institute  of
       Electrical  and  Electronics  Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE and
       The  Open Group Standard, the original IEEE and The Open Group Standard
       is the referee document. The original Standard can be  obtained  online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group                  2003                          GETPGRP(3P)