Finder: “There is no default application specified …”

February 1st, 2009 | 4 Comments | Posted in Mac

After creating a disk image (hdiutil create) and subsequently copying the files careleslly from within the bundle folder directly into my home directory, I could not anymore access my home directory from Finder. The error I got was “There is no default application specified to open the document”. Finder was recognizing my home directory as “package”.
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Parsing the command line in Objective-C

January 14th, 2009 | No Comments | Posted in Development, Mac, Objective-C

Decision into which platform to rewrite the shell script to retrieve the stock quotes using Google API was a simple one - I would like to use Objective-C to be able to run the program on a Mac (and later hopefully on my iPod touch too). I began exploring the Objective-C only recently so I considered to be a good exercise to learn about basic Foundation classes by writing a class to parse command line arguments (instead of using the obvious getopt choice).

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How to get a real-time stock quote using Google API

January 5th, 2009 | 6 Comments | Posted in Development, Internet, Mac, Stocks, bash

After resolving the problem with authentication, I continued playing around with Google Finance API, using HTTP and XML. The API offers some nice functionality to retrieve user portfolio content, but it doesn’t take long to realize that there is no support for retrieving (real-time) stock quotes, probably for some good reason like licensing. But then, there is a way of getting real-time stock quotes on your Google Spreadsheet using the GoogleFinance() formula. Can this fact get us closer to retrieving real-time stock quotes using Google Data API?

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Troubleshooting 401 with GoogleLogin Authorization header

December 29th, 2008 | No Comments | Posted in Internet, Software development, bash

I was writing a small script to retrieve some data from Google Finance using the relevant Google Data API. I’m writing a stand-alone, desktop application and have therefore used the ClientLogin username and password authentication. The login worked fine, I was receiving HTTP status 200 and the appropriate response with the authentication token. Yet any subsequent attempt to use the Data API (to insance to retrieve the portfolio data) failed with HTTP 401 Token Invalid error.

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Ruby, Rails and httpd on Fedora 8

October 18th, 2008 | 2 Comments | Posted in Development, Fedora, Ruby

Just a short summary of how to install Ruby on Rails framework on Fedora 8 and how to configure it to work with Apache 2. Perhaps this might come handy to someone.

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Satellite Imagery of Slovakia updated on Google Earth

August 18th, 2008 | No Comments | Posted in Internet

Updated. Satellite imagery of Slovak Republic and some other Central European (CE) countries on Google Earth (and Google Maps) got an update recently.

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Unslinging a NSLU2 - a few comments for beginners

November 20th, 2007 | 3 Comments | Posted in Linux, NSLU2, Unslung

NSLU2 and WD My Book Premium Edition 500 GBIt doesn’t need to be emphasized more that to read http://www.nslu2-linux.org/ is a complete must for everyone who would like to experiment with updating the original Linksys firmware of a NSLU2 device. Especially, the community rules and and the (extensive) set of warnings should be read and understood before descending into countless Howto’s. I’m grateful to all folks who contributed with all the information - following the steps and Howto’s I unslung my NSLU2 with Unslung-6.8-beta-firmware without problems. I have only experienced two minor issues and would like to mention them here just in case some NSLU2 beginner (like myself) comes across the same.

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Fedora 8: select the repositories carefully

November 15th, 2007 | 6 Comments | Posted in Fedora, Linux

A week ago, I installed Fedora 8, from scratch. The installation went fine, I customized the system to my liking, using the default GUI. After a week, however, I could not initialize an X session anymore. And the problem occurred straight after I downloaded the package updates as the system prompted me to do.

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Fedora 7: Unresolveable requirement gecko-libs = 1.8.1.4 for epiphany

July 31st, 2007 | 2 Comments | Posted in Fedora, Linux

When I started my trusty home PC to process some of my holiday photographs (that explains the silence on this web, I hope), Fedora 7 presented me with the list of 92 updates available for my system. I usually let the the pup (Package Updater) to update all packages and it usually works just fine. This time, Package Updater kept on displaying the “Error resolving dependencies” message.

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The Pigeon Detectives

June 12th, 2007 | No Comments | Posted in Free time, Music, Photography

The Pigeon Detectives We had Kaiser Chiefs here and now we also have here their buddies: The Pigeon Detectives.

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