01-10-2010
Please no not post homework in the main Forums. Thread closed.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
hi
when i want to go to previous directory by typing cd.. i get the following message
$ cd..
ksh: cd..: not found
Please help
rintingtong (2 Replies)
Discussion started by: rintingtong
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2. HP-UX
Good Day
I mistakely renamed the dld.sl file in the /usr/lib directory. When i try to ls/ftp into the box i get this error :eek:
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3. HP-UX
Hello,
My question is related to "pipcs -qa" command under HP-UX 11i PA-RISC 64 bits.
We have a little C program that creates posix ipc message queues using the mq_open() system function.
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4. UNIX for Dummies Questions & Answers
When trying to copy a file in Solaris 8 it doesnt copy file or give a error. This worked 100% until the 29th. I've checked the rights and everything seems fine:
drwxrwxrwx 2 bmuser bmgroup 11776 Jan 3 10:32 spool
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5. Programming
Hii can anyone pls tell how to limit the max no of message in a posix message queue. I have made changes in proc/sys/fs/mqueue/msg_max
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Discussion started by: mohit3884
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6. Programming
Hi,
I´m having a lot of problems when working with message queues, both on HP-UX Systems and Sun Solaris. When we fill a queue with a messages, the system hangs and locks everything that relies on the use of IPC resources. Anyone knows how to eliminate this problem?
Thanks,
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Discussion started by: haroldo
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7. Shell Programming and Scripting
I have created a script which will monitor disk space in unix, it will send an email alert that will notify the specified receipients. I used echo in the mailx command but the email doesnt contain any message. I have used printf to store the message ($message2) and when tried to display on the... (2 Replies)
Discussion started by: lscanaleta
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8. Shell Programming and Scripting
It just does the break...even though the files are not the same...
# Compare extracts
#==========================================
count=0
while (( count < 5 ))
do
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echo "Try $count"
file1=$(ls -l /tmp/psjava.xml|... (5 Replies)
Discussion started by: sigh2010
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9. AIX
Hi Guys,
I have a strange problem.( AIX 6.1) "vi" is not working at all..Whenever i #vi <anythin> ,, it returns the prompt back. Any clues folks?? (14 Replies)
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10. UNIX for Dummies Questions & Answers
I am trying to print out two fields in a file using awk. So, I have got
awk -F '\t' 'NF = 2 {print $1 $2 "]"}' two.txt
in a script called what.awk
When i run this version like this - ./what.awk then it runs however I want to run the program like this
awk -f what.awk two.txt.
When I... (8 Replies)
Discussion started by: The undertaker
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LEARN ABOUT REDHAT
ipc::msg
IPC::Msg(3pm) Perl Programmers Reference Guide IPC::Msg(3pm)
NAME
IPC::Msg - SysV Msg IPC object class
SYNOPSIS
use IPC::SysV qw(IPC_PRIVATE S_IRWXU);
use IPC::Msg;
$msg = new IPC::Msg(IPC_PRIVATE, S_IRWXU);
$msg->snd(pack("l! a*",$msgtype,$msg));
$msg->rcv($buf,256);
$ds = $msg->stat;
$msg->remove;
DESCRIPTION
A class providing an object based interface to SysV IPC message queues.
METHODS
new ( KEY , FLAGS )
Creates a new message queue associated with "KEY". A new queue is created if
o "KEY" is equal to "IPC_PRIVATE"
o "KEY" does not already have a message queue associated with it, and "FLAGS & IPC_CREAT" is true.
On creation of a new message queue "FLAGS" is used to set the permissions.
id Returns the system message queue identifier.
rcv ( BUF, LEN [, TYPE [, FLAGS ]] )
Read a message from the queue. Returns the type of the message read. See msgrcv. The BUF becomes tainted.
remove
Remove and destroy the message queue from the system.
set ( STAT )
set ( NAME => VALUE [, NAME => VALUE ...] )
"set" will set the following values of the "stat" structure associated with the message queue.
uid
gid
mode (oly the permission bits)
qbytes
"set" accepts either a stat object, as returned by the "stat" method, or a list of name-value pairs.
snd ( TYPE, MSG [, FLAGS ] )
Place a message on the queue with the data from "MSG" and with type "TYPE". See msgsnd.
stat
Returns an object of type "IPC::Msg::stat" which is a sub-class of "Class::Struct". It provides the following fields. For a description
of these fields see you system documentation.
uid
gid
cuid
cgid
mode
qnum
qbytes
lspid
lrpid
stime
rtime
ctime
SEE ALSO
IPC::SysV Class::Struct
AUTHOR
Graham Barr <gbarr@pobox.com>
COPYRIGHT
Copyright (c) 1997 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the
same terms as Perl itself.
perl v5.8.0 2002-06-01 IPC::Msg(3pm)