Technology GupShup- All about Technology, Software , Databases, Web Development and Computers

If you have accumulated thousands of files , some times you will have more than one versions of same file. If you use Ubuntu of Mint linux you can find and remove these duplicates very easily. There are two popular tools for this fdupes and fslint Using fdubes ftubes is the most popular, simple and powerful tool to find duplicates and remove them. It is a command line tool so if you don't like command line move to next heading. It compares file size  and MD5 signatures(Do not worry if you don't know what it is). So it will find duplicates even if they have different names. Installation From terminal execute following command  sudo apt-get install fdupes ftubes Syntax fdupes [options] directory where  options available are -r --recurse include files residing in subdirectories -s --symlinks follow symlinked directories -H --hardlinks normally, when two or more files point to the same disk area they are treated as non-duplicates; this ...

Acrobat and its alternatives: 4 ways to edit PDFs

If you use LaTeX on Windows, or in particular pdflatex , you must have noticed that viewing the resulting PDF file is not as easy as you would like it to be. Many PDF readers cannot update PDF automatically when you make changes, and you will have to close PDF reader and open PDF again. Sumatra PDF on other hand will read new PDF as soon as it is updated and you don't and will save your time. 

Here I will explain how I use natbib and agsm from harvard package for Harvard style of references. Include natbib by using \usepackage{natbib}   set  citesep  (separation between two citations in the same place) and  aysep  (separation between author and year in a citation) using \setcitestyle{citesep={;}, aysep={,}}  set bibliograpgy style to agsm my using \bibliographystyle{agsm} and the cite as required using \cite{key} , or \citep{key} a complete reference can be found here Example \documentclass[a4paper,10pt]{report}  \usepackage{natbib} \setcitestyle{citesep={;}, aysep={,}} \begin{document} \chapter{Chapter 1} This is a \citep{key}.  \bibliographystyle{agsm} \bibliography{library} \addcontentsline{toc}{chapter}{References} \end{document}

Captcha or ReCaptcha is already installed with Joomla 2.5 and 3.0. But before you can use it , you will have to enable it by providing some keys. Here I will give you step by step guide on how enable captcha using Joomla 3. Login to your site Admin at yourdomain.com/administrator From top menu select Extension Manager -> Plug In Manager From list of plug-ins find Captcha - ReCaptcha(Enable it if it is not already) Go to basic options tab , it will require a Public and Private key go to  ReCaptcha  website to get the key, provide your domain and it will give you the keys paste Keys in Jooma 3.0 and you are done. The following video explains all the steps. 

Amazon UK has announced new version of Kindle today called " Kindle Fire HD " with higher resolution, faster speaker , high quality sound and a HD camera for video calls. With a lot of tablets in market it is going to face a good competition considering it does not run Android. But Kindle undoubtedly is most popular Electronic Book Reader so Kindle Fire HD as well as reading books has many features any tablet has, including Amazon's own app store with many popular apps and is available at a very competitive price. One problem is that earlier Kindles had battery life of months but this one only has 11 hour battery life. Pros: Good book reader Hard built Powerful processor Dual WiFi Antenna Free unlimited cloud storage for all your Amazon content Good audio output Amazon Music streaming Cons: No android Market No 3G