ipcs Help

UNIX Solaris
1

hi,
I need help with ipcs command on Solaris. What does it do and what are options b,m,o,q does. Here is the sample output of ipcs -oq and ipcs -bm

IPC status from <running system> as of Sun Sep 7 23:07:59 GMT 2008
T ID KEY MODE OWNER GROUP CBYTES QNUM
Message Queues:
q 8197 0x4000 -Rrw-rw-rw- hlrhlp other 0 0
q 8198 0x1501 --rw-rw-rw- hlrhlp other 548 2
q 8199 0x1504 --rw-rw-rw- hlrhlp other 201 67

IPC status from <running system> as of Sun Sep 7 23:09:12 GMT 2008
T ID KEY MODE OWNER GROUP SEGSZ
Shared Memory:
m 1 0x5002865c --rw-r--r-- root root 4
m 2 0x851117 --rw-rw---- root archys 766344
m 3 0 --rw-rw---- root archys 10240
m 4 0 --rw-rw---- root archys 199501604
m 5 0 --rw-rw---- root archys 6097184
m 6 0 --rw-rw---- root archys 6097184

Can somebody plz explain it to me. Thanks

2

The manual page explains the options. ipcs(1) - report inter-process communication facilities status (man pages section 1: User Commands) - Sun Microsystems

If you are unfamiliar with the IPC facilities, you will need to do some reading in order to make any sense of this. I failed to quickly uncover any single introduction which I would like to recommend (if you can borrow Stevens from the library, it's worth every kilogram) but try some of the Google hits.

ipc introduction "shared memory" "message queue" sockets - Google Search

3

i have tried man pages, they are no good.

4

They seem perfectly good to me.

Maybe if you described exactly which part you don't understand we might be able to help you.

5

i think if you describe your situation/problem, we can point you to a more specific document or elaborate more on what we know.

anyway, here are the tunables for ipc.
System V IPC Configuration (Solaris Tunable Parameters Reference Manual) - Sun Microsystems

if you just want to learn, you pretty much need to start reading man pages. :b: