Dunia gadget akhir-akhir ini di ramaikan oleh pendatang baru, pendatang itu di kategorikan ke dalam Netbook. Anda pasti tahu dengan Asus yang dengan Asus Eee PC nya, yang sangat mungil dan tentunya harga yang miring.Asus Eee PC merupakan salah satu gadget yang masuk kategori netbook. Apa saja ciri-ciri netbook? PAda umumnya performa adalah sebuah perbedaan yang mendasar dari netbook dan notebook. Netbook sejak pertama kali diciptakan untuk mensupport pengguna netbook untuk melakukan aktifitas sehari-hari seperti browsing internet, cek email. Sedangkan notebook yang selama ini sudah kita ketahui kemampuannya setara dengan komputer desktop.

Netbook dan notebook secara fisik dapat dilihat perbedaan pada monitor, netbook berukuran 7 hingga 10 inch, sedangkan notebook memiliki layar lebih dari 10 inch. Dengan ukuran yang kecil, netbook sangat nyaman dibawa kemana-mana kita pergi. Hal lainnya yang membedakan adalah netbook memiliki keterbatasan pada output device, dan netbook pada umumnya tidak memiliki optical drive. Ciri yang lain adalah harga, netbook memiliki kisaran harga $250 hingga $500. Tetapi anda tidak dapat menemukan notebook di bawah $500.

Setelah Asus sukses dengan Eee PC nya, banyak vendor-vendor lain menelurkan produk serupa, untuk vendor lokal seperti Xware dengan Aerisnya, Zyrex dengan Ubud dan Anoa. Untuk vendor luar seperti Acer dengan Aspire One, MSI dengan Wind, serta Lenovo dengan Lenovo S10. Toshiba masih ragu-ragu untuk mengeluarkan produknya, karena dikhawatirkan tren netbook ini hanya sesaat.

Target pengguna netbook adalah orang yang suka duduk berjam-jam di food court atau cafe bahkan restoran yang menyediakan hotspot gratis. Fasilitas wifi dipastikan terdapat pada semua jenis netbook. Dapat dipastikan pengguna netbook yang berjam-jam di cafe atau restoran atau tempat lainnya yang terdapat wifi spot adalah chatting, menulis atau hanya sekedar browsing internet saja, karena aplikasi berat sudah dipastikan sangat memakan sumber daya dan tenanga dari netbook tersebut. Aplikasi-aplikasi ringan yang lazim terdapat pada netbook adalah Chat Messenger seperti Yahoo messenger, MSN Messenger, Gtalk, Skype, browser Mozilla, tak lupa webcam juga tertanam pada jenis-jenis tertentu untuk digunakan live cam menggunakan aplikasi Messenger yang support view cam.

Jadi apabila anda membutuhkan untuk menjalankan aplikasi semacam photoshop, AutoCAD dan aplikasi berat lainnya, netbook bukan pilihannya.

Dan berikut adalah review berdasarkan keunggulan, kekurangan, dan tentu saja harga.

Nomor 10: Aprikot Picobook

Nomor 09: Asus Eee PC 700/701

Nomor 08: Dell Inspiron Mini 9

Nomor 07: Eee PC 901

Nomor 06: HP Mini 1000

Nomor 05: Samsung NC10

Nomor 04: Acer Aspire One

Nomor 03: Eee PC 1000

Nomor 02: MSi Wind U120





Eee PC S101 netbook yang terbaik sekarang ini, mungkin.

Keunggulan

Yang paling menarik dari Eee PC S101 adalah warna Brown (sexiest warna di dunia), S101 yang saingan dengan Snickers bar untuk lickability, dan taburan Swarovski kristal. Bentuk yang tipis dan ringan dibanding kebanyakan netbooks, namun masih sangat nyaman dipakai.

Kekurangan

S101 tidak memiliki HSDPA, dengan 3 jam 23 menit masa pakai baterai tidak cukup lama untuk dapat melihat beberapa lengkap film.

Harga £ 449

Anda telah jatuh cinta dengan MSI Wind U110 ?, sehingga tidak ada alasan untuk beralih ke U120. Ini memang belum keluar, tapi kami dapat menjamin bahwa di Januari 2009 Anda akan membeli satu.

Keunggulan

Say good bye pada USB dongles; U120 yang akan terpadu broadband adapter ini berarti Anda bisa berselancar di manapun Anda berada. The Wind U120 diatur untuk memiliki sedikit lebih canggih daripada U110, akan tetapi mungkin fitur yang sama 10,2 inci layar, 1.6GHz Intel N270 Atom CPU dan hard drive hingga 160GB, masa pakai baterai 3 jam 39 menit.

Kekurangan

Kami belum menemukan yang salah dengan Wind U120. Yakin, mungkin Anda mengeluh tentang kecilnya mouse trackpad, dan fakta 160GB hard drive mungkin akan rusak jika anda drop mesin.

Tersedia Januari 2009.

Harga N/A


Eee PC 1000 dengan ukuran relatif lebih besar dan berat dibanding pendahulunya.

Keunggulan

Eee PC 1000 memiliki layar 10,2 inci, berjalan di 1024x600 pixel. Dengan keyboard (dibandingkan Eee PC 700 dan 900) jauh lebih besar , 92 persen dari ukuran netbook ini adalah keyboard. Diusung Intel 1.6GHz Atom CPU dan hingga 2GB RAM menjadikannya melesat cepat dengan OS apapun,

Muncul dalam dua versi: Edisi Linux mendapatkan 40GB solid-state drive, dan model Windows XP - dikenal Eee PC 1000H - 80GB. Menariknya, pengguna juga akan mendapatkan hingga 20GB Web berbasis penyimpanan. Audio definisi tinggi, 802.11n Wi-Fi dan masa pakai baterai 3 jam 56 menit.

Kekurangan
Eee PC 1000 jelas lebih besar dibandingkan seri 900 dan 700. Beratnya yang 1.33kg.

Harga £ 322.

Acer Aspire One, sebuah mesin yang memiliki potensi untuk menjadi Neo dari netbook dunia. Anyway, Acer tidak cukup dengan membuat konten tetapi agresif di harga, £ 199 titik.

Keunggulan

Salah satu yang memiliki checkbox ticked, lincah dengan 1.6GHz Intel Atom CPU, hingga 1.5GB RAM, non-glossy 8,9 inci layar WSVGA Anda dapat menggunakan bahkan di luar ruangan, keyboard yang besar, plus sebuah pilihan HDSPA/3G modul untuk mengakses Internet dimanapun. Penyimpanan di mulai 8GB solid-state drive tetapi dapat ditingkatkan untuk menjadi 80GB jika Anda mau.

Kekurangan

Layar 8,9 inci, dimana selector tombol tinggal di salah satu sisi trackpad, bukan di bawahnya. Paket baterai 2200mAh unit, yang hanya bertahan 3 jam.

Harga dari £ 199.


Samsung pernah mengatakan tidak ada uang di pasar netbooks, tetapi kenyatannya Samsung mengeluarkan NC10.

Keunggulan

Samsung NC10 menggunakan spesifikasi 10 inci netbook (Atom 1.6GHz, 1GB RAM), tetapi ia memiliki 160GB hard drive dan terpadu HSDPA modem untuk mengakses Internet dimanapun. Keyboard yang nyaman serta tata letak spot pada tombol yang diberi nama 'Silver Nano' antibacterial teknologi untuk meminimalkan kesempatan kontaminasi dari kotor. Baterai yang lebih dari 8 jam masa pakai.

Kekurangan

NC10's mouse trackpad cukup kecil. Memiliki strip pada sisi kanan diperuntukkan untuk bergeser vertikalyan, yang justru menghambat pergerakan kursor.

Tersedia di pasaran November 2009.
Harga £ 299.

Kami hampir tidak akan merekomendasikan Mini 1000. Hal ini disebabkan karena para pendahulunya, pada Mini 2133 kami menemukan banyak kegagalan. Namun, tampaknya telah diperbaiki dengan baik.

Keunggulan

Mini 1000 chassisnya yang sekarang terbuat dari plastik bukan logam, dengan pola penutup yang cantik , berat 1.1kg, startup yang benar-benar cepat.

Kekurangan

Ada beberapa kekurangan Mini 1000, misalnya tidak adanya port output video sehingga tidak dapat terhubung ke monitor eksternal, USB port yang hanya mendukung HP elongated USB.

Tersedia Januari 2009

Harga £ 399.


Di nomor 7 adalah Eee PC 901 yang merupakan penyempurnaan dari Eee PC 900

Keunggulan

Eee PC 901, dengan 1.6GHz Intel Atom CPU dan 1GB RAM, lebih cepat dan lebih efisien pemakaian baterainya dibanding para pendahulunya. Daya tahan baterai lebih 4,5 jam dibanding pendahulunya.

Kekurangan

Sebagian besar dari Eee PC 901 identik dengan Eee PC 900. Layar 8,9 inci, yang beberapa pengguna - walaupun mungkin tidak banyak - akan merasakan ketidaknyamanan. Keyboard juga lebih kecil, sehingga kecuali Anda memiliki jari kecil, ini bukan jenis mesin dimana Anda ingin mengetik untuk jenis dokumen panjang.

Harga £ 275.








Michael Dell pernah membuat pernyataan bahwa perusahaannya tidak akan mengambil segmen netbooks secara serius. Tetapi dengan launchingnya tiga mini laptop menunjukkan perusahaan tersebut mengambil pasar lebih serius dari segmen ini.

Keunggulan

Mini 9 menggunakan layar 8,9 inci, sehingga sedikit lebih besar dari Eee PC 700. Dengan atribut built-in modem HSDPA, Intel 1.6GHz Atom N270 CPU dan 1GB RAM, sehingga lebih cepat startupnya, berjalan dengan baik untuk OS Ubuntu atau Windows XP. Masa pakai baterai kurang lebih 3 jam 21 menit.

Kekurangan

Walaupun ini lebih besar dari Eee PC 700, keyboard Mini 9 tetap kurang nyaman untuk mengetik dan layar yang hanya 8,9 inci.

Harga £ 269.











Pada nomor 9, ada Eee PC, ultra mobile PC yang menginspirasi seluruh dunia komputasi untuk mengikuti jejaknya.

Keunggulan

Eee PC 700 merupakan salah satu yang terkecil dari semua netbooks. Ia masih layak diperhitungkan dengan beberapa fitur menarik, 900MHz Intel Pentium M CPU dan RAM 512MB (1GB pada 701) cukup untuk menjalankan Windows XP atau sistem operasi Linux, tetapi kurang melesat kalau dengan Vista, 0,3 megapiksel webcam memungkinkan Anda mengambil sendiri-Potret dan video chat dengan teman.

Kekurangan

Layar 7-inci dengan resolusi 800x480 piksel, yang berarti banyak halaman Web tidak tertampil dengan benar dan Anda harus menggeser kursor ke samping untuk membaca halaman web secara keseluruhan. Keyboard yang kecil sehingga agak kesulitan untuk memasukkan teks secara akurat. Storage yang terbatas, untuk 700 dengan 2GB, sedangkan 701 dengan 4GB.

Harga dari £ 169.









Sebagian besar mungkin Anda tidak terlalu mengenal Apricot. Perusahaan ini berdiri 1980 dengan platform inovatif komputasi, tapi akhirnya telah berkembang dengan pesat beberapa dekade ini dan Picobook adalah salah satu mereknya.

Keunggulan

Picobook memiliki layar 8,9 inci dengan resolusi 1024x600 piksel, yang cukup untuk melihat sebagian besar halaman Web secara penuh, 802.11a/b/g Wi-Fi, Bluetooth , 60GB hard drive. Picobook ini juga sangat portabel dengan berat 1kg chassis, dan baterai 4400mAh.

Kekurangan

Picobook menggunakan VIA C7-M, versi 1.6GHz, 1.2GHz model, memang agak lambat jika kita memakai OS Windows Vista. Hal ini tidak berlaku jika Apricot menggunakan sistem operasi Linux .

Harga: £ 299.


Firstly, type the following command at the console:

sudo apt-get update

This will retrieve new lists of packages.

1.Install MySQL5 in Ubuntu

sudo apt-get install mysql-server-5.0

2.Install PHP MyAdmin

sudo apt-get install phpmyadmin

3.Install Apache2 in Ubuntu

sudo apt-get install apache2

This will complete the installation.

After installation Type the server's IP address (or alias if you added the server to your /etc/hosts file) in your browser's address bar or, if you are browsing on the server itself, type 127.0.0.1 or localhost. If an error occurs, then you will have to edit the apache2.conf file to ensure that Apache can fully resolve the server's name.If you have any problem then you have to edit the apache2 configuration file using the following command

sudo nano /etc/apache2/apache2.conf

Add the following line somewhere

ServerName localhost

or

ServerName yourserverip

Save and exit the file

Now you need to restart Apache server using the following command.

sudo apache2ctl restart

4.Change default document root in Apache2

The main configuration file located at /etc/apache2/apche2.conf.If you want to change the default document root you need to edit the /etc/apache2/sites-available/default file and look for this line “DocumentRoot /var/www/” here you can change where ever you want to change.For example if you want to change /home/www the above line looks like this “DocumentRoot /home/www/”.

Save and exit the file

Now you need to restart Apache server using the following command.

sudo apache2ctl restart

5.Enable PHP support for apache2 webserver

If you want to enable php5 support to your apache webserver use the following commands to install require packages

sudo apt-get install php5 libapache2-mod-php5

You also make sure the php5 modules are enabled using the following commands

sudo a2enmod php5

After installing php support you need to restart apache webserver using the following command

sudo apache2ctl restart

6.Test your PHP Support foe apache webserver

To check the status of your PHP installation

sudo nano /var/www/testphp.php

and insert the following line

Save and exit the file

Now open web browser at http://yourserveripaddress/testphp.php and check.

7.Enable CGI and perl support for apache2 server

You need to install the following package

sudo apt-get install libapache2-mod-perl2

8.Configure a cgi-bin directory

You need to create a cgi-bin directory using the following command

sudo mkdir /home/www/cgi-bin

Configuring Apache to allow CGI program execution is pretty easy. Create a directory to be used for CGI programs and add the following to the site configuration file (again between the tags).

ScriptAlias /cgi-bin/ /home/www/cgi-bin/

Options ExecCGI

AddHandler cgi-script cgi pl

The first line creates an alias that points to the directory in which CGI scripts are stored. The final line tells Apache that only files that end with the *.cgi and *.pl extensions should be considered CGI programs and executed.

9.Test your Perl Program

cd /home/www/cgi-bin

sudo nano perltest.pl

Copy and paste the following section save and exit the file.

###Start###

#!/usr/bin/perl -w

print "Content-type: text/html\r\n\r\n";

print "Hello there!
\nJust testing .
\n";

for ($i=0; $i<10;>

{

print $i."
";

}

###End###

make sure you change permissions on it

sudo chmod a+x perltest.pl

Now open your web browser open http://yourserverip/cgi-bin/perltest.pl.It should be working.

10.Installing Joomla in ubuntu

Set a mysql-root password (not the same as a root password, but a password for mysql)

Type the following command at the console:

mysql -u root -p

then type:

mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('yourpassword');

mysql> SET PASSWORD FOR 'root'@'yourhostname' = PASSWORD('yourpassword');

Where you should change 'yourhostname' in last line. Each successful mysql command will show:

Query OK, 0 rows affected (0.00 sec)

Quit the mysql prompt:

mysql> \q

You should now have a functional LAMP stack and a password for the mysql root user.

Visit Apache PHP MySQL for more information on LAMP.

Get the most recent version of Joomla!

Download it from [http://joomlacode.org/gf/download/frsrelease/111/264/Joomla_1.0.12-Stable-Full_Package.tar.bz2] here.

Put on the Desktop

You need to create a joomla directory using the following command:

on root@ubuntu:/var/www#

mkdir joomla

Unpack it

on root@ubuntu:/home/ubuntu/Desktop#

tar -xzvf Joomla_1.0.12-Stable-Full_Package.tar.bz2 -C /var/www/joomla

And then:

on root@ubuntu:/var/www#

chmod 777 -R joomla

Handle ownership (choose one option):

# 1. Allow writting in whole joomla subtree

sudo chown -R www-data:www-data /var/www/joomla

# 2. Allow writting only in places Joomla! needs to write to (more secure)

sudo chown -R root:root /var/www/joomla

Then type:

cd /var/www/joomla

PLACES='

administrator/backups

administrator/components

administrator/modules

administrator/templates

cache

components

images

images/banners

images/stories

language

mambots

mambots/content

mambots/editors

mambots/editors-xtd

mambots/search

media

modules

templates

'

for i in $PLACES; do

sudo chown -R www-data:www-data $i

done

Handle file and directory permissions:

cd /var/www/joomla

sudo find . -type f -exec chmod 644 {} \;

sudo find . -type d -exec chmod 755 {} \;

Joomla needs a database, user and password

You need to create a database. You can do this with PhpMyAdmin or via the command line:

mysqladmin -u root -p create joomla

Where joomla is the name you picked for the mysql database that joomla will use. You can call it anything you want.

mysql -u root -p

mysql> GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, INDEX, ALTER, CREATE TEMPORARY TABLES, LOCK TABLES ON joomla.* TO 'yourusername'@'localhost' IDENTIFIED BY 'yourpassword';

You do not want to have Joomla use the mysql root user to access the database. The above command creates a mysql user (other than the mysql root user) with some priviledges to use the joomla database. You will need to chose the yourusername and yourpassword. If the command was successful, activate the new permissions:

mysql> FLUSH PRIVILEGES;

Quit the mysql prompt:

mysql> \q

Reload Apache2

You may need to force-reload apache2 so that it knows to use the php module if you haven't done so since you installed the LAMP stack.

sudo /etc/init.d/apache2 restart

Finish installation

Point your browser to localhost/joomla, and follow the onscreen instructions.





Sumpah mampus man, gua sebenarnya pengin dateng ke acaranya cah Jogja itu
.
Pengin dapat ilmu ngepet dolar dari suhu-suhu pemburu dolar, tapi gue nggak bisa datang.
Jadi cuma bisa ngarepin beritanya aja man, and smoga acaranya sukses!!

Peter F. Spalding ,  Washington DC   |  Sat, 11/22/2008 12:53 PM  |  Opinion The Jakarta Post

Americans can be grateful to Indonesia for the contributions the Indonesian culture made to the character of a bright, sensitive, young boy named Barack Hussein Obama who was known to his Indonesian school mates from 1967 to 1971 as "Barry."

The United States will soon have a President who has a profound understanding and respect for Islam gained from having been immersed in "the real Indonesia" of the kampong during his first two years in Indonesia and from his later exposure to the tolerance and pluralistic attitudes at SD Besuki Mentang in Jakarta.

In The Audacity of Hope, the future President of the United States recalls that "our family was not well off in those early years; the Indonesian Army did not pay its lieutenants much. ...without the money to go to the international school that most expatriate children attended, I went to local Indonesian schools and ran the streets with the children of farmers, servants, tailors, and clerks."

Obama writes that he "remembered those years as a joyous time, full of adventure and mystery -- days of chasing down chickens and running from water buffalo, nights of shadow puppets and ghost stories and street vendors (kaki lima) bringing delectable sweets to our door." When his Indonesian stepfather left the military and obtained a job in the oil sector the young Obama was fortunate to attend SD Besuki Mentang, where he studied alongside Muslim, Christian, and Hindu students.

Today Obama knows the Muazzin's call to prayer by heart having lived in the shadow of a Mosque from when he was seven until he was eleven years old. He studied the tenets of Pancasila and can take to heart the motto enshrined on the Indonesian Coat of Arms, Bhinneka Tunggal lka (unity in diversity) which could well be the motto of his own administration.

I also understand how a sensitive seven year old feels attending a local school in a foreign country without speaking the language. I lived in Sweden from when I was seven until I was ten when my father was posted to the U.S. Embassy in Stockholm. I too was a shy outsider initially and then joined the adopted culture to such an extent that I was admonished by my father who told me and my twin brother: "you boys will never get into Harvard if you only speak Swedish to each other."

President elect Obama's mother had similar concerns. She woke her son at 4 am every morning to go over his English lessons and may well have said to her son: "Barack you will never get into Harvard if you only speak Bahasa Indonesia all the time."

The influence of Obama's Indonesian immersion lingers on. I see the Indonesian aspects of our future President's makeup reflected in the dignified, reserve, calm, and pensive aspects of his character. Barack Obama is halus by nature.

President Obama will not rush to judgment. He has been a stranger in a strange land as a young boy and therefore more likely to see the benefits of a world without strangers as an adult.

The future American President's experience in Indonesia makes him eager to assume mutual respect and understanding even when the two do not presume agreement. He is able to appreciate the full meaning of the term "the dignity of difference" and is therefore inclined towards tolerance and dialogue.

Obama has a unique understanding of the gifts of charity and sacrifice from having witnessed the holy month of Ramadan from a unique perspective. Obama's Indonesian experience makes him more likely to ask "has the United States put itself in the shoes-often the bare feet and sandals of those affected by its foreign policy?"

Perhaps the greatest legacy of President-elect Obama's Indonesian experience is his respect and understanding for Islam, which will hopefully be reciprocated over time by those elements in Islam that today wish his country ill. Above all, a President Obama will be in a unique position to build bridges of mutual respect and understanding between Islam and the West.

Obama does not feel morally superior and no longer will the nation he leads feel morally superior to other members of the international community.

Obama is an admirer of the famed theologian Reinhold Niebuhr who wrote: "The fact that honest men see the hierarchy of moral values and principals in a different order according to their different perspectives must not discourage us from honestly seeking to do what is right. But it should dissuade us from all self-righteous assumptions that we are truly moral."

This reflects the Just and Civilized Society envisioned in Pancasila (Kemanusiaan yang Adil dan Beradab) and is something the young Obama came to respect as a school boy in Indonesia.

The world is a better place today because of Barack Obama's election to the Presidency of the United States of America. We can all look forward to the day when President Barack Obama returns to Indonesia and thanks the people of Indonesia in person for their kind hospitality those many years ago.

The writer served as the American Consul General in Surabaya from 1990 to 1993. He has completed a book entitled In the Shoes of Others: An Ethical Foreign Policy for America. He can be reached at PFS202@AOL.COM


ketum NdoroKakung (foto by Yulian)
Foto blogger
makan siang di pantry diiringi band keren

Maylaffayza foto by Yulian



It's taken more than a century, but Einstein's celebrated formula e=mc2 has finally been corroborated, thanks to a heroic computational effort by French, Germany and Hungarian physicists.

A brainpower consortium led by Laurent Lellouch of France's Center for Theoritical Physics, using some of the world's mightiest supercomputers, have set down the calculations for estimating the mass of proton and neutrons, the particles at the nucleus of atoms.

According to the conventional modddel of particle physics, proton and neutrons comprise smaller particles known as quarks, which in turn are bound by gluons.

The odd thing is this: the mass of gluons is zero and the masss of quarks is only five percent. Where, therefore, is the missing 95 percent?

The answer, according to the study published in U.S. journal Science on Thursday, comes from the energy, from the movements and interactions of quarks and gluons.

In other words, energy and mass are equivalent, as Einstein proposed in his Special Theory of Relativity in 1905.

The e=mc2 formula show thats mass can be converted into energy, and energy can be converted into mass.

By showing how much energy would be released if a certain amount of mass were to be converted into energy, the equation has been used many times, most famously as the inspirational basis for building atomic weapons.

But resolving e=mc2 at the scale of sub-atomic particles -in equations called quantum chromodynamics- has been friendishly difficult.

"Until now, this has been hypothesis," France's National Center foe Scientific Research (CNRS) said proudly in a press release.

"It has now been corroborated for the first time."

For those keen to know more: the computations involve "envisioning  space and time as part of a four-dimensional crystal lattice, with discrete points spaced along columns and rows."

I'm trying to remove a big folder from my hard drive, but I get the following error massage:
Error removing file: Permission Denied
Alright.....normally I recommend
Code:
gksu nautilus $HOME/.local/share/Trash
for root's trash use code:
gksu nautilus /root/.local/share/Trash
and just delete the 'files' and 'info' folder


November 22, with flight number 2008 I am flying with Sun Microsystem to Whole World destination.
Benar kata Ndoro Kakung, pokoke ndaftar, ben wae newbie, ra penting yang penting kan kita bisa belajar dari orang-orang seperti Ndoro Kakung,
Herry Sufemi, dll.

Pokoknya langsung saja ke

The Web-based Package Browser

Appnr

Appnr is a web-based tool and a service that install applications on Ubuntu. This is a web interface for APT, and the package is downloaded and installed from Ubuntu/Third-party repositories.

The AptURL Protocol Handler and a Web browser support are required to install applications. Please see Help page.


How to Download YouTube Video using Ubuntu Linux

Thereis a simple way to download YouTube video using Ubuntu Linux. But

firstly you need to install youtube-dl. Here’s how to do:

  1. Suppose your computer is now running Ubuntu Linux.
  2. Open terminal (click Applications > Accessories > Terminal)
  3. Type sudo apt-get install youtube-dl.
  4. Type in your linux password.
  5. Now you’re ready to go. To download your favorite video, simply type youtube-dl -t THE_URL_OF_YOUTUBE_VIDEO. The -t parameter will add video title into the file name.
  6. The downloaded file, which is saved in FLV format, then could be
    played using Media Player (in Linux), FLV player (in Windows), or
    another FLV player program.
  7. That’s it! Enjoy the videos :)