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 indi-
cate 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 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
exec() , fork() , getpgid() , getpid() , getppid() , kill() , setpgid() , setsid() , the
Base Definitions volume of IEEE Std 1003.1-2001, <sys/types.h>, <unistd.h>
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)