bionic (3) getpgrp.3posix.gz

Provided by: manpages-posix-dev_2013a-2_all bug

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 extension getpgid().


FUTURE DIRECTIONS
       None.


SEE ALSO
       exec, fork(), getpgid(), getpid(), getppid(), kill(), setpgid(), setsid()

       The Base Definitions volume of POSIX.1‐2008, <sys_types.h>, <unistd.h>


       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition,
       Standard  for  Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers,  Inc
       and  The  Open Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are most likely to have  been  introduced
       during   the   conversion  of  the  source  files  to  man  page  format.  To  report  such  errors,  see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .