HP-UX Reference (11i v1 05/09) - 1 User Commands A-M (vol 1)

i
ipcs(1) ipcs(1)
R A process is waiting on a
msgrcv().
S A process is waiting on a msgsnd()
.
D The associated shared memory segment has been removed. It will disap-
pear when the last process attached to the segment detaches it.
C The associated shared memory segment is to be cleared when the first
attach is executed.
- The corresponding special flag is not set.
The next 9 characters are interpreted as three sets of three characters each. The first
set refers to the owner’s permissions, the next to permissions of others in the group of
the facility entry, and the last to all others.
Within each set, the first character indicates permission to read, the second character
indicates permission to write or alter the facility entry, and the last character is
currently unused.
r Read permission is granted.
w Write permission is granted.
a Alter permission is granted.
- The indicated permission is not granted.
OWNER The login name of the owner of the facility entry.
GROUP The group name of the group of the owner of the facility entry.
CREATOR The login name of the creator of the facility entry.
CGROUP The group name of the group of the creator of the facility entry.
CBYTES The number of bytes in messages currently outstanding on the associated message
queue.
QNUM The number of messages currently outstanding on the associated message queue.
QBYTES The maximum number of bytes allowed in messages outstanding on the associated
message queue.
LSPID The process ID of the last process to send a message to the associated message queue.
LRPID The process ID of the last process to receive a message from the associated message
queue.
STIME The time the last msgsnd() message was sent to the associated message queue.
RTIME The time the last msgrcv() message was received from the associated message
queue.
CTIME The time when the associated facility entry was created or changed.
NATTCH The number of processes attached to the associated shared memory segment.
SEGSZ The size of the associated shared memory segment.
CPID The process ID of the creating process of the shared memory segment.
LPID The process ID of the last process to attach or detach the shared memory segment.
ATIME The time the last shmat() attach was completed to the associated shared memory
segment.
DTIME The time the last shmdt() detach was completed on the associated shared memory
segment.
NSEMS The number of semaphores in the set associated with the semaphore entry.
OTIME The time the last semop() semaphore operation was completed on the set associated
with the semaphore entry.
WARNINGS
ipcs produces only an approximate indication of actual system status because system processes are con-
tinually changing while ipcs is acquiring the requested information.
Do not rely on the exact field widths and spacing of the output, as these will vary depending on the system,
the release of HP-UX, and the data to be displayed.
Section 1−−376 Hewlett-Packard Company − 2 − HP-UX 11i Version 1: September 2005