Return to setpgrp.2j CVS log

Up to [Research Unix] / researchv10dc / man / manb

Annotation of researchv10dc/man/manb/setpgrp.2j, revision 1.1.1.1

1.1       root        1: .TH SETPGRP 2J
                      2: .UC 4
                      3: .SH NAME
                      4: setpgrp, getpgrp \- set/get process group
                      5: .SH SYNOPSIS
                      6: .B int getpgrp(pid)
                      7: .PP
                      8: .B setpgrp(pid, pgrp)
                      9: .PP
                     10: .B cc ... \-ljobs
                     11: .SH DESCRIPTION
                     12: The process group of the specified process is returned by
                     13: .I getpgrp.
                     14: .I Setpgrp
                     15: sets the process group of the specified process
                     16: .I pid
                     17: to the specified
                     18: .I pgrp.
                     19: If
                     20: .I pid
                     21: is zero, then the call applies to the current process.
                     22: .PP
                     23: If the invoker is not the super-user, then the affected process
                     24: must have the same effective user-id as the invoker or be a descendant
                     25: of the invoking process.
                     26: .PP
                     27: This call is used by
                     28: .IR csh (1)
                     29: to create
                     30: process groups
                     31: in implementing job control.
                     32: The TIOCGPGRP and TIOCSPGRP calls
                     33: described in
                     34: .IR tty (4)
                     35: are used to get/set the process group of the control terminal.
                     36: .PP
                     37: See
                     38: .IR jobs (3)
                     39: for a general discussion of job control.
                     40: .SH "SEE ALSO"
                     41: jobs(3), getuid(2), tty(4)
                     42: .SH BUGS
                     43: The job control facilities are not available in standard version 7 UNIX.
                     44: These facilities are still under development and may change in future
                     45: releases of the system as better inter-process communication facilities
                     46: and support for virtual terminals become available.  The options and
                     47: specifications of these system calls and even the calls themselves
                     48: are thus subject to change.
                     49: .PP
                     50: A system call
                     51: .I setpgrp
                     52: has been implemented in other versions of UNIX which are not widely
                     53: used outside of Bell Laboratories; these implementations
                     54: have, in general, slightly different semantics.

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.