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Articles found under tag: tutorial

How to garble

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In 2003 a strange paragraph made the rounds on email. It read: Aoccdrnig to rscheearch at an Elingsh uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, olny taht the frist and lsat ltteres are at the rghit pcleas. The rset can be a toatl mses and you can sitll raed it wouthit a…

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DMS to DD to KML with AWK and sed

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In a 2014 Linux Rain article I describe a fast 'points plotter' for Google Earth. First I copy a list of latitude/longitudes (lat/lons) from a spreadsheet to the clipboard, then I launch a shell script with a keyboard shortcut. The script builds a KML file from the copied list and opens the KML for…

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Grouping things with AWK

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In this article I explain one way to group data items with AWK arrays. The code is a little mysterious but the results are impressive, especially in my second example! Case 1: Cricket stats The table 'runs' is tab-separated and lists the 86 national team cricket players who scored (or have so far…

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Building sequences of numbers on the command line

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There are two easy-to-use tools for generating numerical sequences. 'Brace expansion' is a BASH shell built-in, while the seq command is included in the GNU/Linux 'coreutils' package. Each tool has its peculiarities and advantages, as shown below. Simple sequences One difference between the two…

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Building a Desktop Wikipedia Checker

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I often look something up in Wikipedia when reading non-browser documents, like PDFs, ODTs and emails. I wanted to have a little desktop window for those look-ups - somewhere I could check Wikipedia without opening a browser and without leaving the document I'm reading. This article describes how I…

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How to repeat a script, or not

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I have a data-entry script which adds records to a plain-text data table. It's a fairly complicated script with a GUI dialog, and until recently it added one record at a time. To add another record, I had to launch the script again. Was there a simple way (I asked myself) to re-run the script, or…

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On dates and stuffed non-dates

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Nothing gives my wife the Screaming Meemies like dates in spreadsheets. Unless she formats the target cell in advance as text, the spreadsheet will turn a perfectly innocent, non-date string like 23/2/6 into '23-Feb-2006'. When she types 6420-11-3, according to both LibreOffice Calc and Gnumeric,…

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The header line: how to add, delete and ignore it

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In a plain-text table, the first or header line usually contains the names of the fields. In this article I've pulled together a variety of ways to add and delete a header, and also how to do things with the rest of the table while leaving the header intact as the first line in the file. Add a…

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Joining Tables on the Command-Line

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This article compares 3 different ways to join tables on a common field. All 3 work OK on small tables, but there's a big difference in speed when the tables to be joined are large, as shown below. Table joining isn't something you need to do if you store data in a simple, flat-file database like a…

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Splitting a File Elegantly

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In a previous Linux Rain article I compared different ways to delete blank lines, and showed that the AWK way was the simplest and most thorough. Here I show how to split a text file into multiple text files using a surprisingly simple AWK command. Background In 2013 I published an article in Free…

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News Elsewhere

Linuxtoday.com

How to use FFMpeg to do simple audio conversion

 HowToForge: Using FFmpeg right from the terminal makes it better for performance compared to downloading and installing a GUI tool for FFmpeg,

Cisco Bringing Group Policy to OpenStack [VIDEO]

EnterpriseNetworkingPlanet: Dave Ward, Development CTO & Chief Architect at Cisco, discusses the networking challenges and opportunities of OpenStack.

OpenStack Foundation Not Worried about the Death Star [VIDEO]

ServerWatch: This week vendors and operators of the open-source OpenStack cloud platform gathered and at OpenStackthe OpenStack Summit here to discuss the present and the future of the cloud.

Entrepreneurs Share How to Build an OpenStack-Powered Business

eWEEK: A panel of top OpenStack entrepreneurs explains what it takes to build a successful cloud startup with free software.

How to setup Raspberry Pi as Backup Server for Linux and Windows Desktops

 HowToForge: The Raspberry Pi is a series of small single-board computers.

How to mount an LVM partition on Linux

 xmodulo: LVM is a logical volume management tool which allows you to manage disk space using the notion of logical volumes and volume groups. T

Russia Eyes Linux-Based Smartphone OS for Mobile Market

 The VAR Guy: Russia may soon adopt the Linux- and Mer-based SailFishOS as the basis for a home-grown mobile and smartphone operating system.

75 Open Source Cloud Computing Apps

 Datamation: The open source community offers apps that can help you build and manage your own cloud as well as apps available on a SaaS basis.

Open source is about more than cost savings

The move to open source technology is a much more fundamental shift, and represents a trend that is starting to cross industries,

GamingOnLinux.com Latest Articles

Neon Struct, A Political Espionage Thriller Released

Minor Key Games have released their political thriller Neon Struct: Die Augen Der Welt on Steam. The game sends you into a neon-coloured surveillance…

Alpha Trailer Published For Action Exploration Game 'Jotun'

Jotun is the game where you face off against Norse mythological creatures in epic boss battles. The game is slated for a Linux release this fall and…

Roguelike Expedition Simulation 'Curious Expedition' Released In Early Access On Steam

Curious Expedition has been available in a web alpha since November last year, has already built a large following and has now been put on Steam to…

More Initial Thoughts On Victor Vran, The RPG From The Tropico Developers

Victor Vran was released recently, and I gave it a small write up, but a major graphic bug stopped me from getting far. This was fixed incredibly…

Run 'N' Gun Metroidvania 'Greedy Guns' In Open Beta For Linux

Greedy Guns is a fast paced action platformer with exploration, ability upgrades and loads of bullets. It's available in a free and open beta on…

Time To Give Up On A Linux Version Of The Racer Gas Guzzlers Extreme

Gas Guzzlers Extreme was causing major excitement when it was planned for Linux, but sadly things didn't turn out so well. I'm a little late on…

Bloodstained: Ritual Of The Night From Koji Igarashi Plans A Same-day Linux Release

Bloodstained: Ritual of the Night is the huge Kickstarter from Castlevania: Symphony of the Night developer Koji Igarashi. I spoke to the developer…

Borderlands: The Pre-Sequel Has A Big Patch, Lots Fixed

Borderlands: The Pre-Sequel is the latest entry into the Borderlands franchise that's on Linux, and even with the studio behind it being closed, a…

Cities: Skylines City Builder Has A Big Update With A European Theme

Cities: Skylines is undoubtedly our best city builder on Linux, and the new content update makes it even sweeter.New feature highlights Over 50…

Endless Legend Could Come To Linux, With More Votes

Endless Legend was originally going to come to Linux, and then the developers decided it wasn't worth it. The Linux client had even been started and…

The Van Helsing Games From Neocore Games Will Not Come To Linux Now

We already knew that the Linux port of Van Helsing was put on hold, but now it seems the developers aren't going to port any of them to Linux. The…

Another Four Classic Games Available On Linux Thanks To GOG

We have another four classic games that have gained Linux support thanks to GOG.com, our collection seems to be growing nicely with them!Master of…

Crowdfunded Point & Click Adventure Game 'Alum' Released On Steam

The game was funded on Kickstarter in 2013 and was pitched as an atmospheric point-and-click adventure game with the same feel as Quest for Glory,…

Retro Platformer JumpJet Rex Now Available DRM Free From Desura

JumpJet Rex by developer TreeFortress Games left Early Access on Steam last month, and is now also available DRM free from Desura. The game runs on…

Black Closet, The Game That Puts Your Mind Into Detention

Black Closet is a game developed by Hanako Games, the creators of such games as THE QUEEN IS DEAD, LONG LIVE THE QUEEN and Magical Diary. Their…