Tag Archives: Linux

How to uninstall software on Ubuntu

Installing software on Ubuntu is really easy but sometimes we can have problems to uninstall it if we have not used the Package Manager (Synaptic till Ubuntu 9.04 and later through the Software Center) or a .deb package. To fastly uninstall all the software you do not need or you are not fond of, you can type in the Terminal:

sudo dpkg -r your_file

An alternative and powerful way is typing:

sudo apt-get remove your_file

(where your_file it is the name of the software you want to remove)

or, if you want to completely cancel also the configuration files:

sudo apt-get --purge remove your_file

If you want to check what software is installed on you Ubuntu you can use:

dpkg --list

and you will obtain a complete list of software and a very short summary for each package.

Prey: a multiplatform, open source anti-thefth free software for laptops

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What about losing your laptop? Obviously the chances to find it and have it back are very few! But there are several software you can install on your laptop to trace the ip and geo-location of te laptop and with a bit of fortune you could find it. Prey is one of these programs you can use and it is particularly interesting because it is open source and free up to three laptops. After the download of the proper version for your OS (Linux, Windows, Mac OS X or Android) you have to run it on your machine and configure it through a very simple interface (on Ubuntu: Applications —> System Tools —> Prey Configurator). Do not forget to select Enable guest account and Wifi autoconnect to improve the possibilities to trace your laptop. You are also asked to provide an email account where you will receive the geo-location reports if your laptop is stolen. When you activate your Prey account do not forget to fill in the Configuration and Modules tabs. Personally we suggest to switch to ON the following commands: Auto update, Notify new reports and all the commands contained in the left column of the Modules tab. At this point, if your laptop is missed, you have to log in your on-line Prey account and, in the Configuration tab, switch the Missing option on YES. Since this moment, Prey software on your laptop is activated and will start sending reports to your email and to your Prey webpage. Last but not least, to better protect your laptop I suggest to hide or cancel the Prey Configurator icon from the OS menu (in Ubuntu: System —> Preferences —> Main Menu —> System Tools and deselect Prey Configurator).

CLI Companion: una ayuda concreta para utilizar la Consola añadiendo una lista automatizada de comandos

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Hace unos días he encontrado esta nueva aplicación para Linux, se llama CLI Companion. Aunque Linux ha evolucionado muchísimo y hay que reconocer que ya casi no hace falta hacer uso de la Consola para ejecutar programas y tareas varias, pero también hay veces que gracias al uso de la Consola se puede solucionar pequeños problema que de otra forma seria bastante mas complicado. En esos casos CliCompanion nos hecha una mano añadiendo una lista con diferentes comandos junto a nuestro terminal. La lista de los comando no es infinita, viene con unos cuantos; para cada comando hay una referencia donde se explica la función, también es posible añadir comandos y los parámetros correspondientes. Además CliCompanion tiene un apartado de búsqueda donde es posible encontrar el comando que mas nos interese en cada momento. Desde cuando lo instalé en mi Kubuntu 10.04, tengo que confirmar que es una muy buena aplicación y puede ser instalada con lo repositorios correspondientes y tener futuras actualizaciones o directamente através el paquete .DEB. Os dejo el enlace de la Web: http://okiebuntu.homelinux.com/okwiki/clicompanion

Ubuntu 10.10 is here but perhaps something is going wrong…

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Since few hours, the new Ubuntu 10.10 is available for the download and installation. This version has some new tasks as a better look and a powerful Software Center that seems to be easier than ever also thanks to the feature “where is it?”. Moreover, F-Spot has been substituted by the more powerful and complete Shotwell as main photo manager. The new sound menu included in Ubuntu 10.10 Maverick Meerkat displays more useful information and song you are playing in Rhythmbox. Last but not least, some new delightful Themes and Backgrounds have been added.

On the weaknesses side, we focus our attention on the first paid application (It is really necessary? Do we need it?) and the hardware requirements. In fact reading the Ubuntu wiki the only requirement is a RAM of more than 256MB but Pleia2 and WebUpd8 believe that the 10.10 version does not run properly on processor below i686 and this is a real uncomfortable limitation! Ubuntu has always run on all types of hardware (this is one of its main key features) and this news, if confirmed by tests, could influence users choice to other distributions as Knoppix or Fedora. We really hope that Ubuntu 10.10 will have just the declared 256MB of RAM limitation but today we have to ask ourselves if a new Knoppix era is coming.

Calibre: el mas versátil gestor, conversor y visualizador de eBooks

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Los E-books están ganando cada vez mas espacio a los libro de papel y seguramente en un futuro no muy lejano llagaran a tener el mismo mercado que los libros de papel. Entre las varias aplicaciones para gestionar vuestra biblioteca digital y vuestros E-reader, he encontrado Calibre, que me parece una de las aplicaciones mejores al momento y es disponible para diferentes SO (Windows, Linux y Mac). Yo la he instalada en mi Kubuntu y tengo que decir que funciona a la perfección; tiene una interfaz gráfica muy intuitiva y aunque sea la primera vez que uso un gestor de E-book no le encuentro ninguna dificultad en moverme en las diferentes opciones que ofrece. Con Calibre es posible administrar nuestros libros en diferentes categorías: Fecha, Autor, Titulo, Editor, Tamaño… y también permite la conversión a diferentes formatos: ePub, PDF, MOBI, oeb, pdb y mas. Es posible también la sincronización con diferentes dispositivos: Kindle, Nook, Papyre, Sony. En el caso que algún libro tenga mas de un formato disponible, el mismo Calibre elige cual el mejor formato para nuestro lector. Calibre es disponible también para Iphone, Ipad e Android. Otra preciosa opción que ofrece es la configuración como lector de noticias y RRS pasándolas a formato de libro electrónico, Para concluir, os aconsejo de probar esta aplicación porque seguro que os puede ayudar mucho en gestionar vuestra Biblioteca Digital.

Dear Readers: Computer Borders is back!

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We need to apologize to all of you because we promised weekly posts and then we took quite a long hiatus. We didn’t mean to be gone for so long, but life got strange, and so on and so forth. But now we are back, and we would like to apologize with all you.

On a more positive note, though, we just checked our reader’s statistics, only to see that we still have almost 200 daily readers. And, believe us, we are shocked! Thanks for waiting our return, everybody.We decided to change something on our blog. First of all we will not duplicate our posts in the Linux and Freeware pages but we post them just in the homepage. In this way, we will have some posts in English and other in Spanish… it is not orthodox but…. why not? We dare!

We would like to know what you all think of the blog so far. What would you like to read? Leave us plenty of criticism in the comment sections. And, you will see a weekly post, starting Monday!

WinFF: the best mkv to avi converter for Ubuntu

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This week, in our Linux Page (in Spanish) we posted an essential manual about the best software to convert a video file from mkv to a more common (and readable) avi format. First of all we tried with a well known line program: ffmpeg but we had different problems and we did not succeed. For this reason we tried to install the specific libavcodec-unstripped-51 package but we were not able to convert our file. For our second test we installed avidemux but also in this case the mkv file resisted. Then we read in a post that VLC contains a powerful converter and we used it to transform the mkv file to avi. Unfortunately we succed only for the audio part of our file but we were not able to obtain a complete video file. Only during our last test we transform the mkv video to avi using WinFF. This program, based on ffmpeg, has a very clear graphical interface and it is very intuitive to use. After ten minutes of trials we were able to correct our settings and to start the file conversion. In the WinFF menu you can easily choose between many different video and audio formats (in our test we chose AVI) with a Device Preset setted to XviD in AVI (16:9) and decide the output folder you prefer. WinFF -does not work- if you do not insert the mandatory data in the below part of the menu. In our test we setted:
Video Settings
Video Bitrate = empty (null = we did not write anything)
Frame rate = 25
Video Size = 592 x 320
Aspect Ratio = 16:9
Audio Settings
Audio Bitrate = 118
Sample Rate = 48000
Audio Channels = 2
Additional Command Line Parameters (advanced)
null = we did not write anything
We recommend WinFF to all that people who are not very clever with line command programs and need to easily transform video files to a different formats!

Two new Backgrounds/Wallpapers on http://deeza.org

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Today, we would like to suggest two new backgrounds/wallpapers we published on http://www.deeza.org/downloads.html. Enjoy and let us know if you like them!

How to easily install programs on your Windows or Ubuntu computers: allmyapps.com

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This week, in our Linux Page (in Spanish), we have added a brief post about allmyapps.com a useful website which allow you to easily install software on Ubuntu (8.04, 8.10, 9.04, 9.10) and Windows (XP, Vista, Windows 7). After a simple registration you can choose the free software you prefere to install and in few clicks and some minutes you are ready to use your new programs. Allmyapps.com, automatically recognizes the OS you have installed on your PC. On allmyapps we found many useful softwares and every month more programs are submitted by readers and added to the website for the installation. For Windows we also positively tested another website ninite.com where we found many free softwares ready to be dowloaded and automatically installed. Easy to use and useful!

How to convert pdf to html on Ubuntu 9.04

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This week, in our Linux Page (in Spanish), we tried to find how to freely convert pdf to html files. Unfortunately we have not been able to discover a satisfying solution. In fact, first of all (1) we upload our complex pdf file (text, color drawing and pictures) on Gmail email and we sent it to ourself. When we opened the email we click on “view as html” option and we were able to read the text (unfortunately too tiny) without drawings and pictures. It was not bad but we were really far from what we were looking for. As second experiment (2) we tried to use Kword and we had (as html) text and pictures but there were many incongruences between the texts and the borders and we missed some phrases. In few words, we had a better look but a worse result. Then (3) we installed pdftohtml using Synaptic Package Manager but unfortunately we were not satisfied from the html file we obtained. At this point we concentrated our researches on a free online solution and in order we tried: “Online conversion tools for Adobe PDF documents“, “convertpdftohtml“, “pdftextonline“, and “pdf-search-engine” but the results were not good. Unfortunately, we dismissed and I confess we could not find a solution to solve the task but we think that the “Kword solution”, if improved, is not far from a good solution in converting the file from pdf to html. Please, if you have suggestions about this topic, feel free to add a comment. Thank you.