IPCS(1) User Commands IPCS(1)NAMEipcs - provide information on ipc facilities
SYNOPSISipcs [resource] [...] [output-format]
ipcs [resource] -i id
DESCRIPTIONipcs 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 ALSOipcrm(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 util‐
ity. 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 ⟨balasub@cis.ohio-state.edu⟩
AVAILABILITY
The ipcs command is part of the util-linux package and is available
from Linux Kernel Archive ⟨ftp://ftp.kernel.org/pub/linux/utils/util-
linux/⟩.
util-linux September 2011 IPCS(1)