1GETPGRP(P)                 POSIX Programmer's Manual                GETPGRP(P)
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NAME

6       getpgrp - get the process group ID of the calling process
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SYNOPSIS

9       #include <unistd.h>
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11       pid_t getpgrp(void);
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DESCRIPTION

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

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

23       No errors are defined.
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25       The following sections are informative.
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EXAMPLES

28       None.
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APPLICATION USAGE

31       None.
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RATIONALE

34       4.3 BSD provides a getpgrp() function that returns the process group ID
35       for a specified process. Although this function supports  job  control,
36       all  known  job  control shells always specify the calling process with
37       this function. Thus, the simpler System V getpgrp() suffices,  and  the
38       added complexity of the 4.3 BSD getpgrp() is provided by the XSI exten‐
39       sion getpgid().
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FUTURE DIRECTIONS

42       None.
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SEE ALSO

45       exec() , fork() , getpgid() , getpid() , getppid() , kill() , setpgid()
46       ,  setsid()  ,  the  Base  Definitions  volume of IEEE Std 1003.1-2001,
47       <sys/types.h>, <unistd.h>
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50       Portions of this text are reprinted and reproduced in  electronic  form
51       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
52       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
53       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
54       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
55       event of any discrepancy between this version and the original IEEE and
56       The Open Group Standard, the original IEEE and The Open Group  Standard
57       is  the  referee document. The original Standard can be obtained online
58       at http://www.opengroup.org/unix/online.html .
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62IEEE/The Open Group                  2003                           GETPGRP(P)
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