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Linux 2.6 - man page for getpgrp (linux section 3posix)

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

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 indi-
       cate 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()  suf-
       fices,  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 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 orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003				       GETPGRP(P)


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