Name

ipcs — provide information on ipc facilities

Synopsis

ipcs [resource] [ ... ] [output−format]

ipcs [resource] −i id

DESCRIPTION

ipcs provides information on the ipc facilities for which the calling process has read access.

OPTIONS

−i, −−id id

Print details only on resource identified by id.

−h, −−help

Display this help and exit.

−V, −−version

Output version information and exit.

RESOURCE OPTIONS

−m, −−shmems

Write information about active shared memory segments.

−q, −−queues

Write information about active message queues.

−s, −−semaphores

Write information about active semaphore sets.

−a, −−all

Write information about all resources (default).

OUTPUT FORMATS

−t, −−time

Write time information. Time of the last control operation that changed the access permissions for all facilities, time of the last msgsnd() and msgrcv() operations on message queues, time of the last shmat() and shmdt() operations on shared memory, and time of the last semop() operation on semaphores.

−p, −−pid

Show creator and last operations PIDs.

−c, −−creator

Show creator and owner.

−l, −−limits

Show resource limits.

−u, −−summary

Show status summary.

SEE ALSO

ipcrm(1), ipcmk(1), msgrcv(2), msgsnd(2), semget(2), semop(2), shmat(2), shmdt(2), shmget(2)

CONFORMING TO

The Linux ipcs utility is not fully compatible to the POSIX ipcs utility. The Linux version does not support the −b and −o options, but does support the −l and −u options not defined by POSIX. The portable application shall not use the −b, −o, −l, and −u options.

AUTHOR

Krishna Balasubramanian

AVAILABILITY

The ipcs command is part of the util-linux package and is available from Linux Kernel Archive


  Copyright 1993 Rickard E. Faith (faithcs.unc.edu)
May be distributed under the GNU General Public License