2 .\" Copyright (c) 1994 SigmaSoft, Th. Lockert
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
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12 .\" documentation and/or other materials provided with the distribution.
13 .\" 3. All advertising materials mentioning features or use of this software
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15 .\" This product includes software developed by SigmaSoft, Th. Lockert.
16 .\" 3. The name of the author may not be used to endorse or promote products
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19 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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30 .\" $FreeBSD: src/usr.bin/ipcs/ipcs.1,v 1.9.2.4 2003/04/08 11:07:51 tjr Exp $
37 .Nd report System V interprocess communication facilities status
48 utility provides information on System V interprocess communication
49 (IPC) facilities on the system.
51 The options are as follows:
54 Show the maximum amount of information possible when
55 displaying active semaphores, message queues,
56 and shared memory segments.
57 (This is shorthand for specifying the
66 Show the maximum allowed sizes for active semaphores, message queues,
67 and shared memory segments. The
68 .Dq maximum allowed size
69 is the maximum number of bytes in a message on a message queue,
70 the size of a shared memory segment,
71 or the number of semaphores in a set of semaphores.
73 Show the creator's name and group for active semaphores, message queues,
74 and shared memory segments.
76 Display information about IPC mechanisms owned by
78 Group specification can be in the form of a numeric GID or
81 Display information about active shared memory segments.
83 Show outstanding usage for active message queues,
84 and shared memory segments. The
86 is the number of messages in a message queue, or the number
87 of processes attached to a shared memory segment.
89 Show the process ID information for active semaphores, message queues,
90 and shared memory segments. The
91 .Dq process ID information
92 is the last process to send a message to or receive a message from
94 the process that created a semaphore, or the last process to attach
95 or detach a shared memory segment.
97 Display information about active message queues.
99 Display information about active semaphores.
101 Show access times for active semaphores, message queues,
102 and shared memory segments. The access times is the time
103 of the last control operation on an IPC object,
104 the last send or receive of a message,
105 the last attach or detach of a shared memory segment,
106 or the last operation on a semaphore.
108 Display information about IPC mechanisms owned by
110 User specification can be in the form of a numeric UID or
113 Extract values associated with the name list from the specified
114 core instead of the default
117 Display system information about shared memory.
119 Extract the name list from the specified system instead of the
121 .Dq Pa /boot/kernel .
123 Display system information about messages queues.
125 Display system information about semaphores.
127 Display system information about shared memory, message queues
139 options are specified, information about all active IPC facilities is
142 System data structures may change while
144 is running; the output of
146 is not guaranteed to be consistent.
148 .Bl -tag -width /etc/passwd -compact
150 default kernel memory
152 default system name list
157 .An Thorsten Lockert Aq Mt tholo@sigmasoft.com
159 This manual page is woefully incomplete, because it does not
160 at all attempt to explain the information printed by