04-19-2008
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi!
I have a script shell and I must do a calculation:
let c=7/4
echo $c => 1 :(
and me I want 1,75
Is it possible to find 1,75 in shell?
Thinks! (10 Replies)
Discussion started by: Castelior
10 Replies
2. UNIX for Advanced & Expert Users
I Use mkcd for save same directories into DVD, But the commande not complete succefuly
mkcd -r directorie_i_whish_save -d /dev/cd1
please it is very urgent
thank you :confused: :confused: (1 Reply)
Discussion started by: mktahar
1 Replies
3. AIX
I can write into DVD? I have USE "MKCD" command
mkcd -r directorie -d /dev/cd1
please help me it s urgent (2 Replies)
Discussion started by: mktahar
2 Replies
4. IP Networking
I have a system that i want to reach via a vpn created vi a fierwall.The fierwall in an other system.
The ip i am trying to get to is 172.16.4.48
I need to get to it via the hme1 interface.
The vpn gateway has this ip 172.30.50.1
I need to clean up the routing table and make this work; or is it... (5 Replies)
Discussion started by: waterboy
5 Replies
5. UNIX for Advanced & Expert Users
Hi,
I want to create a new environment variable (JAVA_HOME), but when I open a new shell this varible is delete...
to create the variable I do :
export JAVA_HOME=/usr/java/jdk
and I verify with :
echo $JAVA_HOME
and it's work...
But When I open a new shell this variable is forget...
( It... (2 Replies)
Discussion started by: marcel_kobain
2 Replies
6. Solaris
Bonjour,
J'ai ajouté par erreur à un sous mirroir des disques de cette facon :
metattach d53 c2t90d0s0 c2t90d1s0 ... alors que j'aurais du faire un stripe par disque (comme ça) :
metattach d53 c2t90d0s0
metattach d53 c2t90d1s0
..
Derriere, j'ai fais un growfs -M du FS pour l'aggrandir et... (1 Reply)
Discussion started by: phil.nakache
1 Replies
7. UNIX for Dummies Questions & Answers
Is there an easy way to setup a cross-over cable (USB-USB) between a linux box and a windows PC? My 2 machines are next to each other but I really do not want to keep transfering my files using my USB drive.
Thanks! (4 Replies)
Discussion started by: Xterra
4 Replies
8. AIX
Bonjour,
Je travail sur un environnement AIX 5.3 et je n'arrive pas à augmenter mon FS ni mon LV.
J'utilise les commande suivante chfs -a size=+4G /home/guesting
ou extendlv sybase5lv 4 et rien à faire il me retourne que le maximum capacity est atteint au niveau du LV alors qu'il y a des PP de... (6 Replies)
Discussion started by: mosta
6 Replies
9. Linux
bonjour,
j'ai un serveur Linux ayant 2 interfaces eth0 et eth1. j'ai configuré deux adresses IP de deux réseaux différents sur les 2 interfaces, et je les ai connecté sur 2 commutateurs différents.
l'adresse IP de eth0 répond sans problème au ping des équipement de son réseau d'appartenance, malheureusement cela... (1 Reply)
Discussion started by: cerco
1 Replies
LEARN ABOUT FREEBSD
mqueuefs
MQUEUEFS(5) BSD File Formats Manual MQUEUEFS(5)
NAME
mqueuefs -- POSIX message queue file system
SYNOPSIS
To link into kernel:
options P1003_1B_MQUEUE
To load as a kernel loadable module:
kldload mqueuefs
DESCRIPTION
The mqueuefs module will permit the FreeBSD kernel to support POSIX message queue. The module contains system calls to manipulate POSIX mes-
sage queues. It also contains a file system to implement a view for all message queues of the system. This helps users to keep track of
their message queues and make it more easily usable without having to invent additional tools.
The most common usage is as follows:
mount -t mqueuefs null /mnt/mqueue
where /mnt/mqueue is a mount point.
It is possible to define an entry in /etc/fstab that looks similar to:
null /mnt/mqueue mqueuefs rw 0 0
This will mount mqueuefs at the /mnt/mqueue mount point during system boot. Using /mnt/mqueue as a permanent mount point is not advised as
its intention has always been to be a temporary mount point. See hier(7) for more information on FreeBSD directory layout.
Some common tools can be used on the file system, e.g.: cat(1), chmod(1), chown(8), ls(1), rm(1), etc. To use only the message queue system
calls, it is not necessary for user to mount the file system, just load the module or compile it into the kernel. Manually creating a file,
for example, ``touch /mnt/mqueue/myqueue'', will create a message queue named myqueue in the kernel, default message queue attributes will be
applied to the queue. It is not advised to use this method to create a queue; it is better to use the mq_open(2) system call to create a
queue as it allows the user to specify different attributes.
To see the queue's attributes, just read the file:
cat /mnt/mqueue/myqueue
SEE ALSO
mq_open(2), nmount(2), unmount(2), mount(8), umount(8)
AUTHORS
This manual page was written by David Xu <davidxu@FreeBSD.org>.
BSD
November 30, 2005 BSD