Copyright (c) 1994 SigmaSoft, Th. Lockert
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$Id: ipcs.1,v 1.1 1994/06/18 21:09:42 cgd Exp $

.Dd June 4, 1994 .Dt "IPCS" 1 .Os NetBSD 0.9b .Sh NAME .Nm ipcs .Nd report interprocess communications facilities status
.Sh SYNOPSIS .Nm ipcs .Op Fl MmQqSsabcoptT .Op Fl C Ar namelist .Op Fl N Ar memory .Sh DESCRIPTION The .Nm ipcs program provides information on active SVID interprocess communication facilities on the system. .Sh OPTIONS The information is displayed in columns and is controlled by the following options: l -tag -width "-C namelist" t Nm -M Displays system information about shared memory t Nm -m Displays information about active shared memory t Nm -Q Displays system information about messages queues t Nm -q Displays information about active message queues t Nm -S Displays system information about semaphores t Nm -s Displays information about active semaphores t Nm -T Displays system information on both shared memory, message queues and semaphores. .El

p If any of the options -M, -m, -Q, -q, -S or -s are specified, only information about that item is listed. If none of those are specified, information about all active interprocess facilities are listed, and if the -T option is given all system information about the interprocess facilities are listed.

p For the active status listings extra information can be listed with the following options: l -tag -width "-C namelist" t Nm -a Select all the options (short for -b, -c, -o, -p and -t) t Nm -b Show the maximum allowed size (number of bytes in a message queue, size of shared memory segment or number of semaphores in each set) t Nm -c Show the creator's name and group t Nm -o Show outstanding usage (number of messages or number of processes attached to a shared memory segment) t Nm -p Show the process ID information (last process to send and receive a message, process that created semaphore or last process to attach or detach shared memory) t Nm -t Show access times (last control operation, last send or receive, last attach or detach of shared memory, last operation on a semaphore) .El There are also options to control the name list and memory image to be used as follows: l -tag -width "-C namelist" t Nm "-C namelist" Use specified namelist in place of /netbsd t Nm "-N memory" Use specified file for memory in place of /dev/kmem .El .Sh RESTRICTIONS The system may well change things around while .Nm ipcs is running. .Sh FILES l -tag -width /etc/passwd -compact t Pa /netbsd System namelist t Pa /dev/kmem Memory t Pa /etc/passwd Username lookup t Pa /etc/group Group name lookup .El .Sh SEE ALSO .Xr ipcrm 1 .Sh AUTHOR l -tag Thorsten Lockert <tholo@sigmasoft.com> .El