yED is an alternate or replacement of Microsoft office Visio on Ubuntu Linux. it is generally used to generate high-quality diagrams.

If you work with C#, you have already mixed object-oriented code with some aspects of functional programming. Why not master Scala? Scala usage in enterprise applications is growing faster than the number of available developers, so there is an increasing demand for .NET developers to learn Scala — using existing C#, VB.NET, LINQ, and F# knowledge as a foundation. In this first article in a series dedicated to Scala for C# developers, I provide an introduction to Scala and its most popular IDE.

In March of 2003, SCO Group filed a lawsuit against IBM over Unix trade secrets. Ten years later, it's a legal dispute that is still alive. Groklaw - a site that got its start because of the SCO case - and a site that is still very much alive was the first to report on the re-opening of the case.

One of the things I dislike about using Irssi in a terminal window on OS X is that I often miss the screen flash when someone mentions my name in IRC. With some fancy SSH tunneling (maybe more on that some other issue) and a really cool pop-up notification tool, if someone mentions my name, I can't miss it. "terminal-notifier" is a command-line tool for creating OS X-native user notifications.

The Apache Subversion (SVN) open source version control system is out with its 1.8 release today. The new release follows the prior SVN 1.7 releaseby some 20 months and introduces a host of new features for developers. The SVN 1.8 release also helps to further Subversion project answer the question of why to use SVN instead of Git.

Parrot has updated its Linux-based AR.Drone 2.0 quadrocopter with an optional 18-minute battery, as well as a “black box” Flight Recorder option for saving GPS data. The company has also released an updated smartphone piloting app that offers a Director Mode function for controlling the quadrocopter’s video camera.

An interview with Anne Nicolas, the chairperson of Mageia.org association.

Canonical has announced today the Carrier Advisory Group for Ubuntu Touch/Phone. This initial Carrier Advisory Group consists of Deutsche Telekom, Everything Everywhere, Korea Telecom, Telecom Italia, LG UPlus, Portugal Telecom, and SK Telecom.

Forth is an imperative stack-based programming language, and a member of the class of extensible interactive languages. It was created by Charles Moore in 1970 to control telescopes in observatories using small computers. Because of its roots, Forth stresses efficiency, compactness, flexible and efficient hardware/software interaction. The focus of this article is to select some of the finest free Forth books which help newcomers to Forth to quickly master this language. All of the texts here come with our recommendation, each offering unique insights.

It has been almost exactly a year since I reviewed Zorin OS 6 Core, which was based on Ubuntu 12.04 LTS "Precise Pangolin". The new version is based on Ubuntu 13.04 "Raring Ringtail", so I'm reviewing that now. What is Zorin OS? It is based on Ubuntu, uses a heavily customized GNOME 3 environment with Compiz as the WM and AWN as a panel. It also aims to look as close to Microsoft Windows as possible. It's fast, stable, configures Compiz properly, and has the programs that I need. I can't find much not to like.

It's been another busy week for the Apache CloudStack project. This week we welcome another new committer, work continues on 4.1.1 and 4.2.0, and we have some interesting discussions on how we should release the CloudMonkey and Marvin tools used with CloudStack. We've also seen a few interesting marketing discussions, and the community is gearing up for the second CloudStack Collaboration Conference taking place 23 June through 25 June in Santa Clara, CA.

The Linux community has been divided in recent years over how desktop environments should be used and designed. The open source community, sometimes accused of merely imitating proprietary operating systems rather than innovating, released several new user interfaces that were geared towards touch screens years before the recent touch-oriented release of Windows 8. These interfaces have met with mixed reactions as they were geared towards hardware that, frankly, most users simply did not have access to. There are many Linux touch-oriented desktop environments, but where is the hardware?

The Rekonq web browser just took a major step forward, delivering all the missing features you may have wanted, and a great deal more. Instead of letting you waste your time hunting for these great features, I have listed them for convenience, with screenshots.

If you want a really fast computer, then Linux is your operating system and Intel may be your chip manufacturer. The June 2013 TOP500 supercomputer list is in and 476 of the top 500 fastest supercomputers in the world run Linux.

Go ahead and ask CSOs from the nation's largest banks about the myriad distributed denial-of-service (DDoS) attacks they've experienced in recent months. They're not going to tell you anything. Security execs have never been comfortable talking about these attacks because they don't want to draw more attention to their companies. They worry that offering even the basic details of their defensive strategy will inspire attackers to find the holes.

The H's Hardware Hacks section collects stories about the wide range of uses of open source in the rapidly expanding area of open hardware. It's where you can find out about interesting projects, the re-purposing of devices and the creation of a new generation of deeply open systems. In this edition: turn a Raspberry Pi into a Tor anonymising proxy, RS Components introduces a site for open source hardware projects, two new boards to control Arduino projects from mobile devices, and an augmented reality backend for Drupal.

Canonical said the first members of the group are Deutsche Telekom, Everything Everywhere, Korea Telecom, Telecom Italia, LG UPlus, Portugal Telecom, SK Telecom, and "the leading Spanish international carrier." We've asked Canonical to identify the Spanish carrier, although based on the description it may be Telefónica (also known as O2). With the exception of Deutsche Telekom, the owner of T-Mobile, the list doesn't include any major US carriers. Canonical said that "any national or multinational carrier" may join.

we will see several command methods with which we can read 2 files alternatively line by line, which means line #1 from file #1 then line #1 from file 2, then line #2 from file #1 then line #2 from file 2 ... and so on. This way of reading will produce a combined file output in which lines are alternated between the files.

The French revolutionary Georges Danton famously said, "After bread, education is the people's first need." And while the French Revolution and the channel may not have much in common, there are few places in which this populist message resonates better than the open source ecosystem, where providing development and other skills to volunteer contributors is vital to long-term success—which is exactly what the Linux Foundation is doing starting this week with its 2013 Linux Training Scholarship Program.

Announcing Bridge Linux 2013.06. This update was mostly just a re-package, but there were a few changes still. Update overview: switched from Packer to Pacaur (don't worry, it's aliased in ~/.bashrc for a while); removed LXMed due to Java dependency; switched to official font packages, no more recompiling the AUR version.

Eight carriers have joined the Ubuntu phone Carrier Advisory Group (CAG). CAG members will influence the Ubuntu Phone roadmap and participate as launch partners. The carrier group includes: Deutsche Telekom, Everything Everywhere, Korea Telecom, Telecom Italia, LG UPlus, Portugal Telecom, SK Telecom and the leading Spanish international carrier.

(Sacramento, USA: June 18, 2013) The Linux Professional Institute (LPI: http://www.lpi.org), the world's premier Linux certification organization, announced it has completed an extensive review and update of the exam objectives for their LPIC-2 and LPIC-3 certification programs. The new exams for LPIC-2 will be available November 1, 2013 in English and LPIC-3 will be available October 1, 2013 in English. Other language for both certification programs TBA.

For those looking for the latest drama in the Ubuntu Linux land, the fighting over whether KDE and GNOME should support the Mir Display Server to complement the in-development Wayland support continues to be hotly discussed.

The Open Source Business Alliance (OSBA), a confederation of German open source providers and users, and its French counterpart, the Conseil National du Logiciel Libre (CNLL) have agreed on a wide-ranging collaboration. The two organisations want to better coordinate their campaigning at the European level and to collaborate with other European open source organisations.

The latest in the Webconverger line of internet kiosk distros is out now, with all important upgrades to its Linux core and web software

With the volcanic rise of the Android OS, smartphones are becoming predominantly open devices. Millions of people are happily walking around with Linux in their pockets and they don’t even know it. Nor should they have to; your average consumer will not choose a smartphone based on its open operating system. If sales are any indication, it’s no longer an uphill battle for open source on smartphones.

No it's not just cloud, cloud, cloud (though it could be..)

On Friday June 7, the German Parliament decided upon a joint motion to limit software patents (see English translation by BIKT). The Parliament urges the German Government to take steps to limit the granting of patents on computer programs. Software should exclusively be covered by copyright, and the rights of the copyright holders should not be devalued by third parties' software patents. The only exception where patents should be allowed are computer programs which replace a mechanical or electromagnetic component. In addition the Parliament made clear that governmental actions related to patents must never interfere with the legality of distributing Free Software.

Researchers at EPFL’s Biorobotics Laboratory (Biorob) announced a cat-like robot that is claimed to be the fastest quadruped robot under 30 kilograms. The Cheetah-cub Robot, which runs real-time Xenomai Linux on an x86-based RoBoard control board, mimics the biomechanics of a cat to increase the speed and stability of it quadroped legs, helping it achieve speeds of 1.42m/s.

Up to 300 various medical devices from 40 vendors have been identified as vulnerable to a hard-coded password issue and two government agencies are working to get the word out and protect against exploits. The Industrial Control Systems Cyber Emergency Response Team (ICS-CERT) at the Department of Homeland Security, and the Food and Drug Administration are warning that the vulnerability could allow attackers to change critical settings and modify firmware.