GETPGRP(P) POSIX Programmer's Manual GETPGRP(P)
getpgrp - get the process group ID of the calling process
The getpgrp() function shall return the process group ID of the calling process.
The getpgrp() function shall always be successful and no return value is reserved to indicate an error.
No errors are defined.
The following sections are informative.
4.3 BSD provides a getpgrp() function that returns the process group ID for a specified process. Although this function supports job con-
trol, 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().
exec() , fork() , getpgid() , getpid() , getppid() , kill() , setpgid() , setsid() , the Base Definitions volume of IEEE Std 1003.1-2001,
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
ogy -- 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(P)