Linux Forum

hi, i want to connect my five laptops together in a load-sharing cluster over wifi (using the wifi-router as a gateway between computers). i wonder if it's possible to do this with minimum knowledge of linux? any ideas on how to go about it? will it work? thanks in advance, k

Hi everyeone, I have insalled ubuntu server. Somebody gave me root access. I check its id and it showed me id as 0 and groupid as 0. I also checked it using whoami = root. But when i tried to change the root password using passwd command its giving me the following response: The program 'passwd' is currently not installed. You can...

Hi, In csh (C-Shell) we have source command source <file name> I need equivalent command for this "source" in ksh. Why I need: As I am running a script under ksh (K-Shell).

I have ubuntu 11.04 and I want a php page to work on the background so do not need to open it. this page read mysql each 20 sec and then send SMS.

Hi, Got hold of a new machine with Windows 7 HB on it, I was looking for different ways to install Linux OS on top of it. Can you suggest some ways? I got to know that Linux OS can be installed on top of Windows as an application, so that you simply double click and start using it. Is this possible? Thanks.

Hi, I'm using AIX(ksh shell). > cat temp.txt "a","b",0 "c",bc",0 "a1","b1",0 "cc","cb",1

Hi, I have a ksh shell script that accesses databases to drop and create tables and the script also creates text files. This shell script is accessed thru a java application that i would like to turn multi-user, but the only way that i can do that is if I can figure out a way to lock the shell script so that only 1 user can access it at a time....

I have very basic info about Linux. I'm using Linux server 11.04 . I'm using the server as a web server to send SMS messages. I have a php page: read data from mysql and then send SMS (according to retrieved data) , this page is already done and store in www dir. I want this page is execute in the background each 10 sec. is that possible in...

Spin Lock I have studied that when a process running in the kernel space is holding a spin lock, it cannot be preempted unless it blocks, sleeps or completes the task. Is my understanding correct? Mutex Lock Does the process running in the kernel space and holding a mutex lock gets preempted in both the cases below: 1. a high priority...

Hi all, I am using RHEL 6. When i use CAP3 software for the first time it successfully resulted. But second time when i used, it's showing "segmentation fault (core dumped)". Even after restarting and reinstalling it showing same error. When i google, i found it some memmory related problem. But no clear information. pls help me in this...

I want to install software called "gensca.tar.uue". But i cannot decode on red hat using "uudecode" command. Can any one pls advice how to decode ? or which package supports? thanks in advance Vignesh

Hi, Suppose an IP 172.17.18.19 is got binded with other IP 172.17.18.20 using TCP socket,then 172.17.18.19 is not allowed to bind with any other IP say 172.17.18.21.What i need is how can find that 172.17.18.19 is got connected with some IP(172.17.18.20). Is there any command is in linux available to detect the IP or tcpdump command is...

hi my operating system is ubuntu 10.4 and i installed virtual box version 4.0.8 r71778 (i copied this version from its help) i installed well my problem is that i cant find suita ble network card or audio drive for virtualed windows. would you please help me how can i set suitable drives for virtual windows because i change some drivers in...

how to empty the files in the directory without removing the directory itself? I want to have it force delete all the file in the dir so I tried using rm -fR but it delete my directory as well. pls advise.

Hi everyone I'm a programmer and have no knowledge of setting up servers. One of my clients have a dedicated server on GoDaddy and a domain name registered with a Swedish registrar. The virtual dedicated server's OS is Linux Centos. I added the domain name on the servers control panel but I think I have to add some DNS or name servers like...

i have purchased dedicated server and it is installed Centos OS by default and plesk admin panel. All i have plesk admin panel info and SSH root access to my VPS. I contacted someone to install linux and that person installed fedora on it. Now i want to do it myself but i dont know how to do it. Hosting company will not have any issue with...

Hi everyone, I have SSH access to the root of remove VPS. I don't know which flavor of linux it is and which operating system it is? Please tell me how would i know the above info? I am sure it is Fedora Linux but what command should give me the above info. Please help me. thank you. Also how would i Install different flavor of linux if...

#! /bin/bash x=5.2 if then mail -s "$x is greater than 25" email@address fi when i run this code i am getting error intger expression required. plz tell me how to define this x ??

Maybe I haven't looked enough, but I would like to create a PXE-bootable 'live' image that would sit in buffer memory of a server so that I don't have to keep running over to servers with my portable DVD drive. Does anyone know of a good guide that covers this? I have found how to create a regular Linux image - is there a difference between one...

Hi,I would like to limit a folder space (in a shell script): when the folder exceeds the maximum size, I have to remove the oldest files How to do this and how to make it running all the time? thanks for the help

Hi, I need to delete all the lines which does not contain the "error" word in a file. so, in vi, I would use :v/error/d and then save the file. How can I achieve this in command line? Thanks in advance

i was trying to install hping into freebsd for testing my network.. after download hping3-20051105.tar.gz i extract and configure it... the problem is when i use command "make", error: /usr/bin/ld: cannot find -ltcl anyone know how to solve the problem i got here? Thanks..

Hi, #! /bin/bash x=50 if then mail -s "$x is greater than 25" email@address fi

Hi friends, I need to extract email addresses from a public site that publishes the names of companies in adobe flash format: http://www.vinitaly.com/catalogo I only use Linux, but do not yet know well the various programming languages​​, some of you experts could give me some suggestions? I've been seen this...

netbios name = ryomanager locking = yes server string = RyoManager Server socket options = TCP_NODELAY default = ExcelFile path = /var/www/ryomanager/ExcelFile local master = yes workgroup = RYONET os level = 35 auto services = ExcelFile