mirror of https://github.com/mkerrisk/man-pages
60 lines
1.9 KiB
Plaintext
60 lines
1.9 KiB
Plaintext
.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
|
|
.TH "GETPGRP" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
|
|
.\" getpgrp
|
|
.SH NAME
|
|
getpgrp \- get the process group ID of the calling process
|
|
.SH SYNOPSIS
|
|
.LP
|
|
\fB#include <unistd.h>
|
|
.br
|
|
.sp
|
|
pid_t getpgrp(void);
|
|
.br
|
|
\fP
|
|
.SH DESCRIPTION
|
|
.LP
|
|
The \fIgetpgrp\fP() function shall return the process group ID of
|
|
the calling process.
|
|
.SH RETURN VALUE
|
|
.LP
|
|
The \fIgetpgrp\fP() function shall always be successful and no return
|
|
value is reserved to indicate an error.
|
|
.SH ERRORS
|
|
.LP
|
|
No errors are defined.
|
|
.LP
|
|
\fIThe following sections are informative.\fP
|
|
.SH EXAMPLES
|
|
.LP
|
|
None.
|
|
.SH APPLICATION USAGE
|
|
.LP
|
|
None.
|
|
.SH RATIONALE
|
|
.LP
|
|
4.3 BSD provides a \fIgetpgrp\fP() 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 \fIgetpgrp\fP() suffices, and the added complexity of the 4.3 BSD
|
|
\fIgetpgrp\fP() is provided by the XSI extension \fIgetpgid\fP().
|
|
.SH FUTURE DIRECTIONS
|
|
.LP
|
|
None.
|
|
.SH SEE ALSO
|
|
.LP
|
|
\fIexec\fP() , \fIfork\fP() , \fIgetpgid\fP() , \fIgetpid\fP() , \fIgetppid\fP()
|
|
, \fIkill\fP() , \fIsetpgid\fP() , \fIsetsid\fP() , the
|
|
Base Definitions volume of IEEE\ Std\ 1003.1-2001, \fI<sys/types.h>\fP,
|
|
\fI<unistd.h>\fP
|
|
.SH 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 original Standard can be obtained online at
|
|
http://www.opengroup.org/unix/online.html .
|