How to truncate a file to zero length ?

ls -l filename
cat /dev/null > filename

ls -l filename

Install Adobe Reader 8.1.2 on Ubuntu 8.04

I figured it was time to update my previous posts on how to install Adobe Acrobat Reader for Ubuntu 8.04. It has become much simpler to install than it has been in the past, meaning it can be installed via a proper .deb package. It is not available in the main Ubuntu repositories, but it is available in Medibuntu.


All you’ll need to do in order to install Adobe Reader is add the Medibuntu repository. This can be done via:

sudo wget http://www.medibuntu.org/sources.list.d/hardy.list -O /etc/apt/sources.list.d/medibuntu.list

Once that is done you’ll likely want to add the Medibuntu GPG key as well:

sudo apt-get update && sudo apt-get install medibuntu-keyring && sudo apt-get update

..and finally install Adobe Reader v8.1.2 (at the time of this writing) by using:

sudo apt-get install acroread

Ubuntu Marketplace- India

http://www.aware. co.in/

Bangalore. We specialize in building and managing Ubuntu/Debian Linux servers and provide good dependable system administration. We install and maintain in-house corporate servers. We also provide dedicated and shared hosting as well as reliable wireless/hybrid networking

http://www.compumaniac.com/

Compumaniac, founded and headed by technocrats, having more than 10 years of experience in respective IT fields, is a consulting firm focusing on the development and implementation of open source strategies for medium and large-sized businesses.

http://www.ehorizon-tech.com/

Chennai. We provide GNU/Linux services such as installation configuration and support services for desktop and server installations. We provide both call and contract based GNU/Linux services. We also provide turnkey GNU/Linux software solutions.

http://www.ibservices.in/

We are helping customers to migrate from windows to GNU/LINUX,UBUNTU. Thin client solutions based on EDUBUNTU in educational institutes.New Laptops and Desktops preinstalled with UBUNTU.


http://www.linuxcertified.com

LinuxCertified is a Open-Source expertise house. We are a leading provider of Linux laptops, services and training. LinuxCertified brings its deep expertise in Linux and open source software to provide significant cost-savings for our customers. LinuxCertified sells pre-installed Ubuntu laptops and servers.


http://www.mahiti. org

Bangalore. We provide end-to end support on Ubuntu including Media sale, Training, Migration planning, deployment, support.


http://tcpip.in/

We provide Linux Solutions For Fast Growing Business

http://www.egovservices.org/

is a fast growing Open-Source government IT service provider in India and is currently running a USD 10 m public-private partnership project in IT with Government of Jharkhand. We run all our resources on Ubuntu.


http://www.taashee.com/

Andhra Pradesh. Taashee Technologies have a dedicated team of certified Linux engineers and developers to handle projects ranging from simple Linux Desktops to complex Servers.

http://www.xseedtec hnologies.com

X-Seed Technologies is a leading Global Technology Services Company providing Software Development and Testing, Sales and Marketing, Technical Support and Infrastructure Management Services.

http://www.yukthi.com

Bangalore, Karnataka. We have been providing FOSS/Linux solutions for over 6 years with many innovative projects to our credit. Our focus is the IT infrastructure space. Based in Bangalore, we have executed projects in many parts of India and the world (US, UK, Finland) too! Also visit www.captain- mail.com

http://www.diqtech.com/

We are a IT Consulting and Services company providing solutions on Ubuntu Servers and platforms. Solutions include Mail Servers, Web Servers, Intranets, CRM, ERP.

see:- http://webapps.ubuntu.com/ marketplace/ asia/ for more details

swap space & ubuntu

See:-https://help.ubuntu.com/community/SwapFaq

kermit in ubuntu

danjmw

as many who have posted for help I'm new to Ubuntun, and I'm loving it. However, I am finding little things missing, little things I've come to depend on when running Fedora Core. at the moment, I'm finding myself scrabbling for a replacement of kermit. What I need is a terminal emulator that will allow me to establish serial connections to other devices, specifically Cisco routers, switches, firewalls. anyone have any suggestions? if kermit's available for Ubuntu/Debian I'd be more then glad to return to it.


shakin

ckermit (multiverse) and gkermit (universe) are both in the repositories.

Edit: If you don't know how, here's how to add those repositories: http://ubuntuguide.org/#extrarepositories

-------------------------------------------------------------------------------------

kermit> connect
SETLINE /dev/ttys0
kermit> connect
kermit> SET CARRIER_WATCH OFF
kermit> connect


references:- http://ubuntuforums.org/showthread.php?t=250461

Ubuntu Hyperterminal

Fri, 06/22/2007 - 11:30pm — str

I was kinda surprise that HyperTerminal is not available anymore in Windows Vista. No problem, I rebooted my notebook to Ubuntu and fire-up minicom.

1. By default, minicom is not installed in Ubuntu, so you need to install it first.
sudo apt-get install minicom
2. Find the name of your Serial Port
dmesg | grep tty
In the output look for something like "tty". The output in my case is like this:
$ dmesg | grep tty
[ 17.341823] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 17.342454] 00:0b: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
This means the device correspond to my serial port is ttyS0.
3. Configure minicom
sudo minicom -s
* Use the keyboard keys to select the menu item Serial port setup.
* Enter A to change the Serial Device to /dev/ttyS0, and then enter E to change the line speed to 9600 8N1
* Using arrow keys, select Save setup as dfl
4. Select Exit from Minicom.
5. Next time, from the terminal you only need to run sudo minicom in order to access your Cisco box.

WHAT HARDWARE WORKS under ubuntu?

The question of what hardware works under Ubuntu is one that’s not easily answered. However, you can
take a look at http://wiki.ubuntu.com/HardwareSupport to see if your hardware is listed. This
is an informal list created by the Ubuntu community, and it’s not comprehensive (which is to say that there may be hardware that works fine that isn’t mentioned). Nor is the list guaranteed to be 100% accurate.But it’s certainly worth a look.


A search engine like Google is your best friend if the Ubuntu hardware list doesn’t help. Simply
search for the brand and model of your hardware and add “Ubuntu” to the search string. This should
return results, usually from the Ubuntu forums (http://ubuntuforums.org) or blogs, written by
those who have found a way to make that type of hardware work.


https://wiki.ubuntu.com/HardwareSupport
Ubuntu-specific hardwarecompatibility information.

http://www.linuxcompatible.org/compatibility.html
Numerous com-patibility lists, arranged by distribution.

http://www.linuxprinting.org
A great spot for reading up on printer compatibility issues.

http://www.linmodems.org
Find out if your modem is supported.

http://www.sane-project.org
Check to see if your scanner is Linux compatible, and look for fixes if it isn’t.

http://www.linux-laptop.net
Have laptop, want Linux? Check it out here.

http://www.tuxmobil.org
Info for using Linux with anything that isn’t stuck to your desk (laptops, PDAs, phones, etc.).