1SETPGRP(3P)                POSIX Programmer's Manual               SETPGRP(3P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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NAME

12       setpgrp - set the process group ID
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SYNOPSIS

15       #include <unistd.h>
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17       pid_t setpgrp(void);
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DESCRIPTION

21       If the calling process is not already a session leader, setpgrp()  sets
22       the  process  group  ID of the calling process to the process ID of the
23       calling process. If setpgrp() creates a new session, then the new  ses‐
24       sion has no controlling terminal.
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26       The setpgrp() function has no effect when the calling process is a ses‐
27       sion leader.
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RETURN VALUE

30       Upon completion, setpgrp() shall return the process group ID.
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ERRORS

33       No errors are defined.
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35       The following sections are informative.
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EXAMPLES

38       None.
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APPLICATION USAGE

41       None.
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RATIONALE

44       None.
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FUTURE DIRECTIONS

47       None.
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SEE ALSO

50       exec(), fork(), getpid(), getsid(), kill(),  setpgid(),  setsid(),  the
51       Base Definitions volume of IEEE Std 1003.1-2001, <unistd.h>
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54       Portions  of  this text are reprinted and reproduced in electronic form
55       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
56       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
57       Specifications Issue 6, Copyright (C) 2001-2003  by  the  Institute  of
58       Electrical  and  Electronics  Engineers, Inc and The Open Group. In the
59       event of any discrepancy between this version and the original IEEE and
60       The  Open Group Standard, the original IEEE and The Open Group Standard
61       is the referee document. The original Standard can be  obtained  online
62       at http://www.opengroup.org/unix/online.html .
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66IEEE/The Open Group                  2003                          SETPGRP(3P)
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