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Updated: 1 hour 9 min ago

Linux expr command tutorial for beginners (with examples)

Wednesday 23rd of August 2017 05:57:52 AM
Sometimes, while working on the command line (especially when dealing with a shell script), you may find yourself in a situation where you have to perform actions like searching for a substring in a string, finding its index, as well as other things like performing comparisons and arithmetic operations. For those who aren't in the know, there exists a command line utility - dubbed expr - that lets you do all this.

How to set up an all open-source IT infrastructure from scratch

Wednesday 23rd of August 2017 04:32:05 AM
You need to set up the IT infrastructure (email, file sharing, etc.) for a new company. No restrictions. No legacy application support necessary. How would you do it? What would that ideal IT infrastructure look like? For starters, everything should be open source.

Apache Foundation and Facebook in Standoff Over React.js License

Wednesday 23rd of August 2017 03:06:19 AM
The widespread use of code from Facebook maintained React.js, a popular developer tool for building interfaces with JavaScript, is the reason why this issue is particularly problematic for Apache. Unless Facebook changes the license, all of Facebook's code will have to be removed from all projects that have been using it. In some cases that might be impossible, meaning popular applications will no longer be available.

4 open principles for building a better startup

Wednesday 23rd of August 2017 01:40:32 AM
If you're launching a company, you might believe you shouldn't have to deal with issues like personnel development and company culture. After all, as a startup you're only concerned with the development and rapid evolution of your own product and services, right? This kind of thinking is short-term thinking. Successful startups develop organizations with long-term strategies in mind. Startups really should think about—and prepare the groundwork for—their own company culture from beginning, so they can scale it over time as they grow.

Red Hat adds Microsofts .NET Core 2.0 to its Linux and cloud offerings

Wednesday 23rd of August 2017 12:14:46 AM
How things change! Microsoft is porting SQL Server to Red Hat's Red Hat Enterprise Linux (RHEL). And now, Red Hat will support Microsoft's open-source .NET Core 2.0 on RHEL, Red Hat OpenShift Container Platform, and other Red Hat platforms. It's no wonder Bill Gates only owns 1.3 percent of Microsoft these days.

The Battle to Save Net Neutrality: A Panel with Tom Wheeler, Ro Khanna, Mozilla, Leading TV Producers and Others

Tuesday 22nd of August 2017 10:48:59 PM
On September 18, net neutrality experts will gather at the Internet Archive to discuss dire threats to the open web. You’re invited! Net neutrality — and the future of a healthy internet — is at stake.

Announcing Open Jam, a game jam created with open source in mind

Tuesday 22nd of August 2017 09:23:13 PM
After more than a year of participating in game jams as Team Scripta, we wanted to host one that promotes open source games and game creation tools. That's why we're teaming up with Opensource.com to bring you Open Jam, a game jam dedicated to doing just that.

DeepSPADE (alias DeepSmokey): A Machine-Learning System That Collects Spam from the Internet

Tuesday 22nd of August 2017 07:57:26 PM
DeepSPADE stands for Deep Spam Detection, and the basic point is for machine learning to do a Natural Language Classification task to differentiate between spam and non-spam posts on public community forums.

Hardening Docker Hosts

Tuesday 22nd of August 2017 06:31:40 PM
Root inside your containers is the root user on your host. Securing your Docker containers and the hosts upon which they run is key to sustaining reliable and available services. From my professional DevSecOps perspective securing the containers and the orchestrators (such as OpenShift, Docker Swarm and Kubernetes) is usually far from easy.

How many of your games run on Linux?

Tuesday 22nd of August 2017 05:05:54 PM
Gamer? Check. Linux user? Check.For years, one of the top excuses I heard from friends who would otherwise have switched to Linux long ago is that they just couldn't give up their Windows-only games. I can empathize. I was a dual-booter for years for exactly this reason, and it made making the switch harder for me. After all, once I'm booted into one operating system, the temptation is to stay there rather than rebooting once gameplay is over.Today, the landscape is far different. It's much easier than it used to be for a gamer to be a Linux user, and vice versa.read more

Astroplan Python library makes astronomy research planning easier

Tuesday 22nd of August 2017 02:58:26 PM
For some people, the darkness of the recent eclipse set off a light bulb. As millions of people saw the sun blotted out by the moon, many of them realized they're interested in astronomy more generally. Those people are in luck. A Python library called Astroplan can help them plan their observations.read more

Gtop, is one of the nifty tool that capable to display system processes dynamically in graphic mode on your Linux terminal.

Tuesday 22nd of August 2017 01:32:39 PM
Gtop, is one of the nifty tool that capable to display system processes dynamically in graphic mode on your Linux terminal.

More in Tux Machines

Oracle: New VirtualBox 5.2 Beta, SPARC M8 Processors Launched

  • VirtualBox 5.2 to Let Users Enable or Disable Audio Input and Output On-the-Fly
    Oracle announced new updates for its popular, cross-platform and open-source virtualization software, the third Beta of the upcoming VirtualBox 5.2 major release and VirtualBox 5.1.28 stable maintenance update. We'll start with the stable update, VirtualBox 5.1.28, as it's more important for our readers using Oracle VM VirtualBox for all of their virtualization needs. The VirtualBox 5.1 maintenance release 28 is here to improve audio support by fixing various issues with both the ALSA and OSS backends, as well as an accidental crash with AC'97.
  • SPARC M8 Processors Launched
    While Oracle recently let go of some of their SPARC team, today marks the launch of the SPARC M8. The initial SPARC M8 line-up includes the T8-1, T8-2, T8-4. M8-8, and SuperCluster M8-8 servers.

Wikileaks Releases Spy Files Russia, CCleaner Infected, Equifax Has a Dirty Little Secret

  • Spy Files Russia
    This publication continues WikiLeaks' Spy Files series with releases about surveillance contractors in Russia. While the surveillance of communication traffic is a global phenomena, the legal and technological framework of its operation is different for each country. Russia's laws - especially the new Yarovaya Law - make literally no distinction between Lawful Interception and mass surveillance by state intelligence authorities (SIAs) without court orders. Russian communication providers are required by Russian law to install the so-called SORM ( Система Оперативно-Розыскных Мероприятий) components for surveillance provided by the FSB at their own expense. The SORM infrastructure is developed and deployed in Russia with close cooperation between the FSB, the Interior Ministry of Russia and Russian surveillance contractors.
  • Malware-Infected CCleaner Installer Distributed to Users Via Official Servers for a Month
    Hackers have managed to embed malware into the installer of CCleaner, a popular Windows system optimization tool with over 2 billion downloads to date. The rogue package was distributed through official channels for almost a month. CCleaner is a utilities program that is used to delete temporary internet files such as cookies, empty the Recycling Bin, correct problems with the Windows Registry, among other tasks. First released in 2003, it has become hugely popular; up to 20 million people download it per month. Users who downloaded and installed CCleaner or CCleaner Cloud between Aug. 15 and Sept. 12 should scan their computers for malware and update their apps. The 32-bit versions of CCleaner v5.33.6162 and CCleaner Cloud v1.07.3191 were affected.
  • Equifax Suffered a Hack [sic] Almost Five Months Earlier Than the Date It Disclosed
  • This is why you shouldn’t use texts for two-factor authentication

    For a long time, security experts have warned that text messages are vulnerable to hijacking — and this morning, they showed what it looks like in practice.

Amazon Changes Rental ('Cloud') Model on GNU/Linux

Devices/Hardware: Embedded/Boards, CODESYS, and EPYC Linux Performance

  • Linux friendly IoT gateway runs on 3.5-inch Bay Trail SBC
    While the MB-80580 SBC lists SATA II, the gateway indicates SATA III. Also, the gateway datasheet notes that the RS232 ports can all be redirected to RS232/422/485. Software includes Windows IoT Core and Server, as well as Yocto, Ubuntu Snappy Core, and CentOS Linux distributions.
  • Rugged panel PC scales up to a 19-inch touchscreen
    The fanless, IP65-rated WinSystems “PPC65B-1x” panel PC runs Linux or Win 10 on a quad-core Atom E3845, and offers 10.4 to 19-inch resistive touchscreens.
  • CODESYS announces CODESYS-compatible SoftPLC for open Linux device platforms
  • EPYC Linux performance from AMD
    Phoronix have been hard at work testing out AMD's new server chip, specifically the 2.2/2.7/3.2GHz EPYC 7601 with 32 physical cores.  The frequency numbers now have a third member which is the top frequency all 32 cores can hit simultaneously, for this processor that would be 2.7GHz.  Benchmarking server processors is somewhat different from testing consumer CPUs, gaming performance is not as important as dealing with specific productivity applications.   Phoronix started their testing of EPYC, in both NUMA and non-NUMA configurations, comparing against several Xeon models and the performance delta is quite impressive, sometimes leaving even a system with dual Xeon Gold 6138's in the dust.  They also followed up with a look at how EPYC compares to Opteron, AMD's last server offerings.  The evolution is something to behold.
  • Opteron vs. EPYC Benchmarks & Performance-Per-Watt: How AMD Server Performance Evolved Over 10 Years
    By now you have likely seen our initial AMD EPYC 7601 Linux benchmarks. If you haven't, check them out, EPYC does really deliver on being competitive with current Intel hardware in the highly threaded space. If you have been curious to see some power numbers on EPYC, here they are from the Tyan Transport SX TN70A-B8026 2U server. Making things more interesting are some comparison benchmarks showing how the AMD EPYC performance compares to AMD Opteron processors from about ten years ago.