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Wednesday, 31 October 2012

CodeWeavers Announces Free CrossOver Giveaway

CodeWeavers, the developer of CrossOver has decided to run a 24-hour free giveaway for their famous wine-based product, CrossOver.

CrossOver allows you to install many popular Windows applications and PC games on your Linux computer. It's easy, affordable, and best of all, there's no Windows license required. Your Windows applications and games integrate seamlessly on your computer; just click and run. CrossOver is capable of running a wide range of Windows software and games.

On Wednesday, Oct. 31, 2012, beginning at 00:00 Central Time (-5 GMT), anyone visiting CodeWeavers’ Flock The Vote promotional web site (flock.codeweavers.com) will be able to download a free, fully functional copy of either CrossOver Mac or CrossOver Linux. Each copy comes complete with 12 months of support and product upgrades. Upon registering your name and e-mail address along with your version (CrossOver Mac or CrossOver Linux), you will get an e-mail with the instructions for download. The offer will continue for 24 hours, from 00:00 to 23:59, Oct. 31, 2012. Flock The Vote is an initiative to get more Americans to vote in the upcoming 2012 Presidential elections.

Get Free Copy Of CrossOver

Update: direct download links:

32 bit Debian/Ubuntu

64 bit Debian/Ubuntu

32/64 bit Red Hat (Fedora, SUSE, Mandriva)

Installer for all other linux distros

Mac and Others

Sandy survivors, you can still get the offer from HERE.

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Tuesday, 30 October 2012

Download MakeUseOf.com Guides - Google Dork

Well makeuseof.com guides are good read for the average computer users and sometimes the guide from them can be quite useful for startup in particular topic. But, I hate the ways we need to follow to download so here's a simple google dork to find PDFs from makeuseof.com

MakeUseOf.Com provides three methods to download the guides: social media sharing, 99 cent payment, and subscription to their newsletter. I hate when sites impose such things and here is how you can get those PDFs directly.

Go to google and type the following in search box:

site:amazonaws.com inurl:makeuseof.com

or, CLICK HERE!!!

Enjoy free MakeUseOf.Com guides ;)

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Download Advanced NLP Documents

In this post, you will be able to download advanced natural language processing slides and assignments that were used as the study material during the course conducted in Kathmandu University on 27^th August - 21^st September, 2012.

The course program comprised of two graduate level courses, which are itself divided up into two modules. The two courses are: 1) Advanced Linguistic Resources; 2) Advanced Applications for Natural Language Processing. The official website for the course was up for a while but seems to be down now so I decided to upload these documents for you guys.

Course 1: Advanced Resources for Natural Language Processing

Module A: Grammars and Treebanks for Syntactic Processing
(Stefanie Dipper, Univ. Bochum and Heike Zinsmeister, Univ. Stuttgart)

Syntactic preprocessing is becoming more and more important for NLP applications, such as Anaphora Resolution or Phrase-Based Statistical Machine Translation (see Course 2). This course aims at getting students acquainted with relevant state-of-the-art resources for syntactic processing, teaching them how to use and evaluate them, and enabling them to create such resources on their own. Course topics include: symbolic and statistical models for syntactic processing for NLP applications; Resources for syntactic analysis — grammars and their use in parsers; annotated corpora — constituency- and dependency-based treebanks; evaluation measures for inter-annotator agreement and system evaluation. The course will be a combination of lectures and hands-on practice in applying and developing tools for syntactic processing. The lectures are complemented by extensive hands-on exercises. Students will be encouraged to practice and create their own resources.

Module B: Word and Verb Nets for Semantic Processing
(Miriam Butt, Univ. Konstanz and Annette Hautli, Univ. Konstanz)

The course will provide an introduction to existing lexical resources for English such as WordNet, VerbNet and PropBank and why they have proven to be useful for NLE. A WordNet, VerbNet and PropBank for Hindi are currently being created as part of various projects in India, the USA and Germany and the course will use the preliminary versions of the Hindi resources to introduce students to the special structures found in South Asian languages and to discuss where different design decisions need to be made. The course will also show students why it is important to understand established linguistic categories with regard to lexical structure and lexical semantics and how that can help guide the classification and encoding of lexical information in lexical resources in a manner that will be useful to NLE.

Course 2: Advanced Applications for Natural Language Processing

Module A: Statistical Machine Translation
(Alex Fraser, Univ. Stuttgart)

The goal of the course is to have students acquire in depth knowledge of statistical machine translation methods and be familiar with the relevant iterature and an open source statistical machine translation system. The course will cover: Basic statistical modeling for machine translation; Automatic and manual evaluation of machine translation output; Bitext alignment of parallel sentence pairs; Basic phrase-based statistical machine translation models and decoding; Log-linear models and minimum error rate training; Discriminative word alignment; morphological and syntactic modeling.

Module B: Automatic Speech Recognition
(Sarmad Hussain, Univ. of Engineering and Technology)

The course will start by covering articulatory and acoustic phonetics, followed by some basis understanding of speech processing needed to separate the phonetic content from a speech signal. The course will then develop an understanding of the Baysian model for speech recognition and its implementation using Hidden Markov Models, covering both training and decoding algorithms. Finally the course will focus on practical aspects of designing, developing and labeling a speech corpus and using tool-kits to develop speech recognition models. The course will have two labs, first on acoustic phonetics and second on developing a prototype speech recognition system with limited vocabulary.

Download Course Material

Update
Thanks to Rohit Man Amatya, one of the participants of Summer School. He has written installation scripts for debian based systems and provided a list of what needs to be installed for working on the whole course. Plus the solutions for programming assignments.

Summer School @ GitHub

Sunday, 28 October 2012

Think Like A Hacker For Better Security Awareness

52% of businesses experienced more malware infections as a result of employees on social media. This whitepaper provides an insight on how to think like a hacker for better security awareness.

Security awareness is mostly about common sense, and thinking like the hackers to understand what security weaknesses they look for. But like other security precautions, it's easy to let down your guard.

Security awareness education can arm your staff with the skills to practice safe Internet usage - to reduce malware and other cyber threats. The whitepaper entitled Takes One to Know One: Think Like a Hacker for Better Security Awareness is a must read for making yourself aware of security in this digital world.

In this paper, find out:

Best ways to deliver a security awareness program
What you should teach your staff
How to make security awareness a priority

Download The Whitepaper

Saturday, 27 October 2012

Steam for Linux Beta Survey Is Out

Lately, Valve Software, the vendor for steam has been showing lots of interest to develop games for linux platforms and offer linux users one of the best gaming experiences. Valve has today announced its survey for steam for linux beta.

Valve Software writes: We're looking for Linux gamers to install and test our new Steam for Linux client. We are primarily interested in experienced Linux users.

In order to take the survey, you need to first login with your Steam account to link your response with your Steam ID. Once you are ready for beta testing, you can login from this link. 1000 steam users will be chosen based upon the responses in the survey.

Steam community recently got its dedicated linux section and good for us, all these signs seem to indicate that Valve is trying to extend its market over the linux platform.

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Accelerate Your Softwares Update Speed Using Apt-fast

Long ago, I had posted about apt-fast script which used axel to create multiple HTTP connections and increase the download speed of software updates and packages. In this post, you will get the details for installing apt-fast from PPA. apt-fast is a shellscript wrapper for apt-get and aptitude that can drastically improve apt download times by downloading packages in parallel, with multiple connections per package.

As a pre-requisite, we will first install axel, a simple yet very useful command line download accelerator. Alternatively, you can also use aria accelerator with apt-fast.

samar@samar-Techgaun:~$ sudo apt-get install axel

Then you will have to add a PPA for apt-fast, update the database, and install apt-fast.

samar@samar-Techgaun:~$ sudo add-apt-repository ppa:apt-fast/stable
samar@samar-Techgaun:~$ sudo apt-get update
samar@samar-Techgaun:~$ sudo apt-get install apt-fast

You need to configure few options afterwards as below:

For manual installation and grabbing the source code, check the GitHub.

Once you install apt-fast, you can install softwares and perform updates from the repos using the command below:

samar@samar-Techgaun:~$ sudo apt-fast install package_name

I hope this becomes useful :)

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Linux Cat Command Examples

Cat is a standard unix tool to concatenate and display the content of files. In this post, I will present some examples of cat command so that you can use them in your scenario.

The cat command displays the content of file on the standard output. If multiple files are specified, the contents of all files will be concatenated and then displayed on the standard output. Likewise, if no file is specified, it will assume standard input (keyboard input) as the input to the command. The Ctrl + d is the shortcut used to save the contents in the appropriate output placeholder specified and exit the cat command.

Print content of file in standard output

samar@samar-Techgaun:~$ cat workers.txt 
List of workers, designations & salary (in K):
Kshitiz Director 30
Bikky Manager  20


Abhis Sweeper  10
Rajesh Guard  12

Print line numbers

samar@samar-Techgaun:~$ cat -n workers.txt 
     1 List of workers, designations & salary (in K):
     2 Kshitiz Director 30
     3 Bikky Manager  20
     4 
     5 
     6 Abhis Sweeper  10
     7 Rajesh Guard  12

Print line numbers for non-empty lines only

samar@samar-Techgaun:~$ cat -b workers.txt 
     1 List of workers, designations & salary (in K):
     2 Kshitiz Director 30
     3 Bikky Manager  20


     4 Abhis Sweeper  10
     5 Rajesh Guard  12

Create a new file

samar@samar-Techgaun:~$ cat > newfile.txt
We can create text files
using cat command
once u finish writing,
press ctrl+d to save file
^d

Display content of multiple files

samar@samar-Techgaun:~$ cat workers.txt newfile.txt 
List of workers, designations & salary (in K):
Kshitiz Director 30
Bikky Manager  20


Abhis Sweeper  10
Rajesh Guard  12
We can create text files
using cat command
once u finish writing,
press ctrl+d to save file

Combine multiple files to new file

samar@samar-Techgaun:~$ cat workers.txt newfile.txt > concat.txt
samar@samar-Techgaun:~$ cat concat.txt 
List of workers, designations & salary (in K):
Kshitiz Director 30
Bikky Manager  20


Abhis Sweeper  10
Rajesh Guard  12
We can create text files
using cat command
once u finish writing,
press ctrl+d to save file

Append data to existing file

samar@samar-Techgaun:~$ cat >> newfile.txt 
New line added
^d
samar@samar-Techgaun:~$ cat newfile.txt 
We can create text files
using cat command
once u finish writing,
press ctrl+d to save file
New line added

Alternatively, you can use the syntax below if you wish to create new file combining the content of already existing file and standard input.

samar@samar-Techgaun:~$ cat newfile.txt - > myfile
thanks for everything
^d
samar@samar-Techgaun:~$ cat myfile 
We can create text files
using cat command
once u finish writing,
press ctrl+d to save file
New line added
thanks for everything

Another possibility is to combine two text files with data from standard input (keyboard) in-between the contents of these two text files.

samar@samar-Techgaun:~$ cat workers.txt - newfile.txt > myfile

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

^d
samar@samar-Techgaun:~$ cat myfile 
List of workers, designations & salary (in K):
Kshitiz Director 30
Bikky Manager  20


Abhis Sweeper  10
Rajesh Guard  12

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

We can create text files
using cat command
once u finish writing,
press ctrl+d to save file
New line added

Display $ sign at the end of each line

samar@samar-Techgaun:~$ cat -E workers.txt 
List of workers, designations & salary (in K):$
Kshitiz Director 30$
Bikky Manager  20$
$
$
Abhis Sweeper  10$
Rajesh Guard  12$

Display ^I sign instead of TABs

samar@samar-Techgaun:~$ cat -T workers.txt 
List of workers, designations & salary (in K):
Kshitiz^IDirector^I30
Bikky^IManager^I^I20


Abhis^ISweeper^I^I10
Rajesh^IGuard^I^I12

Display files with non-printing characters

samar@samar-Techgaun:~$ cat -v /bin/nc

In the example above, the non-printing characters are replaced with ^ and M- notation except for line breaks and TABs. This can be used to display the contents of binary files which would otherwise have shown gibberish text all over the console.

Show contents with tabs, line breaks and non-printing characters

samar@samar-Techgaun:~$ cat -A /bin/nc

The tab will be substituted by ^I, line breaks with $ and non-printing characters with ^ and M- notation. Actually, the -A switch is equivalent to -vET switch.

Supress/squeeze repeated empty lines

samar@samar-Techgaun:~$ cat -s workers.txt 
List of workers, designations & salary (in K):
Kshitiz Director 30
Bikky Manager  20

Abhis Sweeper  10
Rajesh Guard  12

Using -s switch, we can squeeze repeatedly occurring blank lines and replace all the adjacent empty lines with a single empty line in the output. This might be useful to reformat a file with several empty lines in-between (eg. cat -s workers.txt > formatted_workers.txt).

Display last line first

samar@samar-Techgaun:~$ tac workers.txt 
Rajesh Guard  12
Abhis Sweeper  10

Bikky Manager  20
Kshitiz Director 30
List of workers, designations & salary (in K):

It is the tac, not the cat that is doing the magic but just thought that this is the right place to make a note about this little known command.

Edit: Added here-doc examples. Thanks rho dai for pointing me this.

Parameter substitution using here-document strings

samar@samar-Techgaun:~$ cat > test << TEST
samar@samar-Techgaun:~$ I am $USER. My home is $HOME
samar@samar-Techgaun:~$ I came here from $OLDPWD
samar@samar-Techgaun:~$ TEST
samar@samar-Techgaun:~$ cat test 
I am samar. My home is /home/samar
I came here from /home/samar/Downloads

Command expansion example

samar@samar-Techgaun:~$ cat > test << TEST
samar@samar-Techgaun:~$ $(ls /)
samar@samar-Techgaun:~$ TEST
samar@samar-Techgaun:~$ cat test
bin
boot
cdrom
dev
etc
home
initrd.img
initrd.img.old
lib
lost+found
media
mnt
opt
proc
root
run
sbin
selinux
srv
sys
tmp
usr
var
vmlinuz
vmlinuz.old

Parameter substitution turned off

samar@samar-Techgaun:~$ cat > test << 'TEST'
samar@samar-Techgaun:~$ I am $USER. My home is $HOME
samar@samar-Techgaun:~$ I came here from $OLDPWD
samar@samar-Techgaun:~$ TEST
samar@samar-Techgaun:~$ cat test
I am $USER. My home is $HOME
I came here from $OLDPWD

Note the difference between the last example and previous two examples. Enclosing the limit string TEST with quotes prevents the substitutions and expansions.

I hope these examples are useful. :)

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Wednesday, 24 October 2012

Happy Vijaya Dashami 2069

Techgaun team would like to wish all our site visitors happy vijaya dashami 2069. May this dashain bring peace and prosperity in everyone's life and may the world be more peaceful place than ever.

I would like to include blessings (ashirbad / आशिर्वाद) offered during Dashain.

The mantra below is enchanted when elders offer tika to male member:

आयुर द्रोण सुते श्रेयम दशरथे , सत्रुक क्षेयम रघवे, ऐश्र्वर्यम नहुशे , गतिस्च पवने, मानन्च दुर्योधने, सौर्यम शान्त नवे, बलम हलधरे , सत्यस्च कुन्तीसुते , बिज्ञ।न बिदुरे, भवन्तु भबताम, किर्तिस्च नारायणे!

Ayur Drona sute sriyem Dasarathe, Satruk ksheyam Raghave, Yaishoryem Nahushe, Gatischa pawane, Manancha Duryodhane, Suaryam Shanta nave, Balam Haldhare, Satyaschha Kuntisute, Bigyanam Bidure, Bhawanu Bhabatam, Kirtischha Narayane!

The mantra below is enchanted when the tika is offered to the female members:

ॐ जयन्ती मङ्गला काली भद्रकाली कपालिनी । दुर्गा क्ष्यमा शिवा धात्री स्वहा स्वधा नमोस्तु ते ।।

Om Jayanti Mangala Kaali Bhadra Kali Kapalini Durga Kshyama shiva dhatri swaha swadha namostu te