http://www.shlomifish.org/me/blogs/ Is the web becoming fragmented? http://community.livejournal.com/shlomif_tech/52195.html <a href="http://www.catonmat.net/">Peteris Krumins</a> <a href="http://www.catonmat.net/blog/node-js-knockout-competition">writes:</a> <blockquote> So I participated in the 48 hour Node.js Knockout competition together with James Halliday and Joshua Holbrook. Our team was called Dark Knights and we created an online chess application called Node Chess. … Oh, and it works only [on] Chrome. Ancient-browsers-please-be-gone! </blockquote> My question is: how can you call Firefox, whose <a href="https://developer.mozilla.org/devnews/index.php/2010/07/23/firefox-3-6-8-now-available-for-download/">latest stable release was on the 23 of July this year</a> and which has perfectly usable and nightly builds ancient? It is highly possible that due to the recent hype surrounding HTML 5 and its mutually partial implementation by the different browsers, that we are entering a situation where many sites or demos will only work on particular browsers. This didn't start with Peteris' post - naturally. Previously, someone from <a href="http://www.isoc.org.il/">the Israeli Internet Society</a> referred me to some demos that said required a WebKit-based browser, and during a presentation about HTML 5 in an "Alphageeks" meeting, the presenter had to use three different browsers, because all the features he wanted to demonstrate did not work on all of them. And this is without taking the account <a href="http://arstechnica.com/open-source/news/2010/06/mozilla-evangelist-criticizes-apple-html5-showcase.ars">Apple's block of non-"Apple Safari" browsers from its HTML 5 demos</a> and the fact that <a href="http://www.spice-space.org/">www.spice-space.org</a> obnoxiously redirects you to <a href="http://www.spice-space.org/noscript.html">"This site requires JavaScript" page</a> if JavaScript is disabled, and many other sites do not function properly without JavaScript enabled. And as a commenter on Reddit for a web demo said, while the <a href="http://en.wikipedia.org/wiki/Demoscene">demoscene</a> people have been trying to produce demos that utilise the most out of the computer's resources, the web demos have come to waste a lot of resources in creating anachronistic demos, whose only selling point is that they run inside a browser. As <a href="http://www.joelonsoftware.com/articles/FB4.5.html">Joel on Software notes</a>: <q>Combined with the speed and responsiveness from Ajax, FogBugz has almost reached the level of speed and fluidity of my dry cleaner's DOS 2.0 character mode database application. And that's pretty darn responsive for a web app.</q> Are we headed into another "Best viewed with Netscape 2.0", "Best viewed with Internet Explorer 4.0", etc. era of web fragmentation, because we opened the Pandora box of HTML 5? As for me, if I were a judge on that competition that Peteris took part of, I would fail his project due to not being capable of running on my ancient browser. Shlomi Fish ( shlomif@iglu.org.il ) firefox web html http://community.livejournal.com/shlomif_tech/52195.html http://community.livejournal.com/shlomif_tech/52195.html Tue, 31 Aug 2010 11:44:48 GMT Perl Debugger Tip: A Session Startup File http://community.livejournal.com/shlomif_tech/51785.html Here's a small Perl debugger tip: in order to have a file whose commands will be executed at the start of the debugging session (for example in order to get to a certain point in the code) - a session startup file, similar to gdb's <tt>--command=cmds.gdb</tt> flag - one can do the following: First of all write a file with the debugger commands you want (let's call it <tt>cmds.perldb</tt>) and then when inside the perl debugger say: <pre> source cmds.perldb </pre> This will execute all the commands. I noticed that after a while the perl debugger stores it inside the history (assuming you're using Term-ReadLine-Gnu), so you can recall it with <tt>s</tt> and then pressing the <tt>history-search-forward</tt> and <tt>history-search-backward</tt> that were set up (Mandriva assigns them to Page Up and Page Down). Enjoy and I'm sorry for having neglected this blog for a long while! Shlomi Fish ( shlomif@iglu.org.il ) tip perl tech debugger http://community.livejournal.com/shlomif_tech/51785.html http://community.livejournal.com/shlomif_tech/51785.html Wed, 25 Aug 2010 19:12:41 GMT Report on August Penguin 2010 http://community.livejournal.com/shlomif_tech/51654.html Hi all. This is a report on the <a href="http://august.penguin.org.il/">August Penguin 2010</a> conference, which I've attended and enjoyed. I decided to write it in English due to the proliferation of Hebrew reports, out of convenience, and in order to publicise the Israeli open source activity abroad. So here goes nothing. First of all, an apology: I wanted to publicise the conference more intensively, but I got distracted by the fact that the opening paragraph in the site was supposed to be fixed (and I did not know how to fix it because I'm not a Drupal expert and there was no edit button there), and that I started working intensively on a for-pay project (and a Perl and <a href="http://www.catalystframework.org/">Catalyst</a> one at that) shortly before the conference, which turned out to be time-consuming and also distracted me. So I apologise if it resulted in fewer people attending the conference, and I'll try to keep it in mind for next year. In any case, I posted an E-mail to the mailing list asking for a ride, and <a href="http://www.zak.co.il/">Omer Zak (a.k.a "TDDPirate")</a> volunteered to give me a ride. After negotiating an hour, I realised I needed to wake up at 06:00 AM, in order to catch the ride. The alarm woke up me up and I had relatively little trouble to get up. I made some preparations, ate something, and started playing a deal of Freecell in <a href="http://pysolfc.sourceforge.net/">PySolFC</a> (which later on during the day motivated me to <a href="http://tech.groups.yahoo.com/group/fc-solve-discuss/message/1067">find a performant scan for Freecell Solver</a> to solve it), and didn't finish in time. Then I went to meet Omer. He picked me up on Keren Kayemet Boulevard a long stretch before the designated meeting place. Apparently he was early (or I was a bit late), and had to diverge from the main road. So we drove all the way to Weizmann Institute where the August Penguin conference took place. The ride was relatively uneventful, there were no substantial traffic jams, but we saw another car with some FOSS-related stickers on the way (probably going to the conference as well). We arrived early before the doors of the hall were open, but other people got there too and I've talked with them a little and also posed for a photograph with my name. After they opened the doors, I helped carry some food and stuff from the cars, and then ate some of the pastries that were brought and drank some assorted juices - all of which were good. (I think I had eaten too much during the conference, because later on, I didn't have too much appetite for the midday meal). In any case, I met a few old and new people during the conference. One of them told me he met me on <a href="irc://irc.freenode.net/#perl">Freenode's #perl</a>, where I guided him a bit and that he was on Freenode often. He brought an Archlinux-based laptop, and also said he's been writing some Perl scripts for various tasks. I've also met <a href="http://ddorda.useopensource.net/">Dor</a> for the first time as he was volunteering in the Ubuntu-Israel stand. I should note that I had volunteered to guide a blind attendee and she eventually arrived and I showed her where everything was in the hall. During one of the breaks, I also showed her where <a href="http://blog.oriidan.info/">Ori</a> was. She asked me to escort her to the bus station in order, but eventually someone else volunteered to escort her a short time before I went out of the hall to do so. I enjoyed several of the presentations there especially the ones about <a href="http://wildfiregames.com/0ad/">the 0AD game</a> (which looked great based on the screenshots and screencasts), and <a href="http://oknesset.org/">the Open Knesset (= the Israeli parliament)</a> project. I stayed up to the giving of the Hamakor prize, where I was invited to the stage to receive the third place for the communal prize for <a href="http://perl.org.il/">the Israeli Perl Mongers</a>. Omer eventually gave me a ride back home after wrapping up the transcripting business there. So the conference was very nice and I enjoyed it a lot. Here's to next year's conference, and hope to see you in <a href="http://wiki.osdc.org.il/index.php/Tel_Aviv_Meeting_on_12_August_2010">the upcoming Tel Aviv Open Source Club meeting this Thursday</a>. Shlomi Fish ( shlomif@iglu.org.il ) israel software august foss open penguin perl linux source report http://community.livejournal.com/shlomif_tech/51654.html http://community.livejournal.com/shlomif_tech/51654.html Tue, 10 Aug 2010 11:46:36 GMT TelFOSS Meeting: Kaltura, the Open Source Video Platform http://community.livejournal.com/shlomif_tech/51299.html The <a href="http://tel.foss.org.il/">Tel Aviv Open Source Club</a> will host <a href="http://wiki.osdc.org.il/index.php/Tel_Aviv_Meeting_on_12_August_2010" rel="nofollow">a presentation about Kaltura, the Open Source Video Platform</a> by Zohar Babin on Thursday, 12-August-2010, at 19:00 in <a href="http://www.shenkar.ac.il/">Shenkar College in Ramat Gan (12 Ann Frank St.)</a> room 300 (note the change of time and place from the previous meetings - we are now meeting in Shenkar College, on a Thursday and on 19:00.). There's <a href="http://www.shenkar.ac.il/template/default.aspx?maincat=5&catid=32" rel="nofollow">a map with directions on the Shenkar College's site</a>. Further details, maps for arrival, etc. can be found <a href="http://wiki.osdc.org.il/index.php/Tel_Aviv_Meeting_on_22_July_2010" rel="nofollow">on the Wiki</a>. Attendance is free, it is not necessary to RSVP and everyone are welcome. With any other problems, feel free to <a href="http://www.shlomifish.org/me/contact-me/">contact the organiser</a>. Abstract <a href="http://corp.kaltura.com" class="externaltext">Kaltura</a> (also see <a href="http://en.wikipedia.org/wiki/Kaltura">its Wikipedia entry</a>) allows publishers of all sizes to easily, quickly, and cost effectively enhance their web site with video and interactive rich-media functionalities, including video management, searching, uploading, importing, editing, annotating, remixing, sharing, and advertising. Unlike the alternative proprietary solutions, Kaltura’s platform is completely flexible, extensible and free! Web publishers, value-added-resellers, and integrators use our software development kit to customise a unique rich media experience that fits their specific purposes, and seamlessly integrates with many popular content management systems. Moreover, Kaltura’s reference implementations and growing library of applications, extensions and plug-ins allow publishers to select off the shelf solutions for rapid self-serve deployments that can be fully enabled within minutes. Visit <a href="http://www.kaltura.org">Kaltura.org</a> for the community site, forums and all the open source projects that are part of the Kaltura Platform. In the lecture <ul><li> We will cover all major aspects of online video and why a platform to handle the various tasks is required. </li><li> We will learn about ways to install the <a href="http://www.kaltura.org/project/community_edition_video_platform" rel="nofollow">Kaltura CE v2.x</a>, and use it to deploy your own video website/RIA. </li><li> There will be an open discussion about using and extending Kaltura for personal use, academic use and enterprise solutions for rich-media knowledge management. </li></ul> This lecture is an open invitation to learn more, try out and become a part of this fast growing and exciting open source solution. About the Lecturer Passionate about people, ideas, technology and video; Always ready to chat about innovative ideas or creative solutions, Zohar is a community technology activist and programmer. Among his interests are the study of communities, collaboration, open source, digital art, Video and 3D. Zohar works at Kaltura where he heads Developer Relations & Community. He is a fellow manager of flashoo.co.il, the Israeli Flash Platform developer community, founder of WebiTalks the Israeli web developer community and frequently speaks at web events worldwide. Twitter: <a href="http://twitter.com/zohar">@zohar</a> And his <a href="http://www.zoharbabin.com/">fresh new Blog</a> A video artist by heart, developer by night. :) <hr /> We are always looking for people who will volunteer to give presentations on various topics that are related to open source code and to computers. In case you are interested to give a talk, or that you have a suggestion for a talk that interests you, we'll be happy to hear from you. Shlomi Fish ( shlomif@iglu.org.il ) announcement telux telfoss meeting http://community.livejournal.com/shlomif_tech/51299.html http://community.livejournal.com/shlomif_tech/51299.html Sat, 07 Aug 2010 10:32:12 GMT Recent Hacktivity Log http://community.livejournal.com/shlomif_tech/51162.html Another boring recenty hacktivity log. First of all, in case you have not heard <a href="http://rakudo.org/announce/rakudo-star/2010.07">Rakudo Star, a usable implelmentation of Perl 6</a> has been released after a lot of work. Now on to the hacktivity. File-Format-CRD I released the first version of <a href="http://search.cpan.org/dist/File-Format-CRD/">File-Format-CRD</a> to CPAN. This is a CPAN distribution that processes <a href="http://filext.com/file-extension/CRD">Windows Cardile (.CRD) files</a> (does anybody still remember those?) and allows to convert them to other formats. I wrote it because the only program with source that I found for them was written in C and converted them to invalid HTML. I based my efforts on it. After I wrote the program I was able to extract the contents of an old CRD file I had with riddles, but then was appalled from the immaturity there (as I wrote it during high school). Still, the module may prove useful. It seems like the second CPAN distribution in the File-Format-* namespace after File-Format-RIFF, but I could not find any place better to put it. Test-WWW-Mechanize-LibXML <a href="http://search.cpan.org/dist/Test-WWW-Mechanize-LibXML/">Test-WWW-Mechanize-LibXML</a> is another off-shoot of my project for Insurgent Software, that provides some primitives to test web pages' content using <a href="http://search.cpan.org/dist/HTML-TreeBuilder-LibXML/">HTML-TreeBuilder-LibXML</a>. Right now, it requires some funky multiple-inheritance to work together with Test-WWW-Mechanize-Catalyst because they both override the same function. But it's there. libfilefind I've continued working on libfilefind, which is a translation of <a href="http://www.shlomifish.org/open-source/projects/File-Find-Object/">File-Find-Object</a> to C using glib. Translating the Perl code to C is very tedious, and since I have a lot of Perl code, I decided to translate it all at once, pray, and then test it. After that, I hope to create Perl bindings to this library, and put them on CPAN in order to increase File-Find-Object's speed. catable I've done a little work on <a href="http://www.ohloh.net/p/catable">Catable</a>, which is our Catalyst-based blog engine. Homepage I've done some work on the homepage, adding yet-unannounced pages, and also adding some more "<meta />" keywords to existing pages. Project Euler This weekend, I've made <a href="http://bitbucket.org/shlomif/project-euler">a lot of progress with solving Project Euler problems</a>. One problem which took me a long time to get right was eventually solved using <a href="http://en.wikipedia.org/wiki/Test-driven_development">Test-driven development (TDD)</a> and then I made more progress including solving one problem by hand. Games-Solitaire-Verify I released a new version of <a href="http://fc-solve.berlios.de/verify-code/">Games-Solitaire-Verify</a> and this time took <a href="http://blogs.perl.org/users/sawyer_x/2010/03/modules-vs-applications.html">Sawyer X's advice</a> and included a small command-line application inside, which proved useful for me as well in my Solitaire research. Shlomi Fish ( shlomif@iglu.org.il ) recent hacktivity perl cpan http://community.livejournal.com/shlomif_tech/51162.html http://community.livejournal.com/shlomif_tech/51162.html Sat, 31 Jul 2010 16:16:43 GMT Git Tip: git status http://community.livejournal.com/shlomif_tech/50785.html I've had to work with <a href="http://en.wikipedia.org/wiki/Git_%28software%29">the git version control system</a> extensively in the past few weeks (due to the proliferation of projects I'm involved in that use it.). I found the standard "git status" output to be far too wordy and annoying, and sought a way to improve it and make it more subversion like. "man git-status" helped with this: one can write <tt>git status -s</tt> to get an output similar to <tt>svn status</tt> (or <tt>svn st</tt> for short) and <tt>git status -s .</tt> to restrict the output only to files below the current directory (and not get the <tt>../…</tt> files). Enjoy! Shlomi Fish ( shlomif@iglu.org.il ) vcs git tip scm tech tech tip http://community.livejournal.com/shlomif_tech/50785.html http://community.livejournal.com/shlomif_tech/50785.html Fri, 30 Jul 2010 09:58:08 GMT Tel Aviv Open Source Club Presentation: "GarlicSim" by Ram Rachum http://community.livejournal.com/shlomif_tech/50498.html <div dir="rtl" align="right"> <a href="http://tel.foss.org.il/">מועדון הקוד הפתוח התל-אביבי (תלוקס)</a> ייפגש שוב כדי לשמוע את <a href="http://wiki.osdc.org.il/index.php/Tel_Aviv_Meeting_on_22_July_2010">הרצאתו של רם רחום אודות GarlicSim</a> ביום חמישי, 22 ביולי, 2010 ב-19:00 <a href="http://www.shenkar.ac.il/">במכללת שנקר ברמת גן (רח' אנה פרנק 12)</a> חדר 300 (שימו לב לשינוי במיקום ובזמן מהפגישות הקודמות - אנו ניפגש ביום חמישי, במכללת שנקר, ובשעה 19:00). ניתן למצוא <a href="http://www.shenkar.ac.il/template/default.aspx?maincat=5&catid=32">מפה עם הוראות הגעה באתר של מכללת שנקר</a>. פרטים נוספים, מפות להגעה, וכו ניתן למצוא <a href="http://wiki.osdc.org.il/index.php/Tel_Aviv_Meeting_on_22_July_2010">בוויקי</a>. הנוכחות בהרצאה היא בחינם ולא נדרשת הרשמה מראש. במידה שישנן בעיות, אל תהססו <a href="http://www.shlomifish.org/me/contact-me/">ליצור קשר עם המארגן</a>. סיכום ההרצאה <a href="http://garlicsim.org/">GarlicSim</a> הינה תשתית עבור הדמיות (סימולציות) ממוחשבות הכתובה בפייתון. היא מהווה פרוייקט קוד פתוח שאפתני בתחום המחשוב המדעי, ובפרט בזה של הדמיות ממוחשבות. בכוונתה להטוות מחדש את הדרך בה אנשים חושבים על הדמיות ממוחשבות, וליצור סטנדרט חדש לדרך שבה יוצרים ומשתמשים בהדמיות. GarlicSim הינה פלטפורמה לכתיבת, הרצת, וניתוח סימולציות. היא מספיק כוללנית כדי לטפל בכל סוג של הדמיה: פיזיקה, תורת המשחקים, התפשטות מחלות, אלקטרוניקה, וכו. ייתכן שאתם תוהים מה משותף לכל ההדמיות האלה. אנו ננסה לענות על שאלה זו בהרצאה. אנו נראה דוגמאות של הדמיות אחדות ב-GarlicSim ושל כלים שהיא מספקת להרצתן וניתוחן. אודות המרצה <a href="http://cool-rr.com/">רם רחום</a> הוא מפתח פייתון. הוא עובד בעיקר על GarlicSim, אבל ידוע גם כמי שיצר את <a href="http://pythonturtle.org/">PythonTurtle</a>, על מנת להפיץ את פייתון לאלפי ילדים ומבוגרים ברחבי העולם. <hr /> אנו תמיד מחפשים מרצים שיתנדבו לתת הרצאות בנושאים שונים הקשורים לקוד-הפתוח ולמחשבים. במידה שאתם מעוניינים לתת הרצאה, או שיש לכם הצעה להרצאה שמעניינת אתכם, נשמח לשמוע ממכם. </div> Shlomi Fish ( shlomif@iglu.org.il ) announcement telux telfoss meeting python http://community.livejournal.com/shlomif_tech/50498.html http://community.livejournal.com/shlomif_tech/50498.html Thu, 15 Jul 2010 09:15:41 GMT Freecell Solver 3.2.0 was Released http://fc-solve.blogspot.com/2010/07/freecell-solver-320-was-released.html <a href="http://fc-solve.berlios.de/">Freecell Solver</a> version 3.2.0 has been released. It is available in the form of a source tarball from <a href="http://fc-solve.berlios.de/download.html">the download page</a>. We hope to release a Windows binary soon. This release implements the <tt>--depth-tests-order</tt> flag that allows varying the tests' order based on the depth which allows for interesting (and faster) searches. Several new presets : <tt>-l the-iglu-cabal</tt> , <tt>-l foss-nessy</tt> and <tt>-l tea-for-two</tt> have been added , the latter optimised for two freecell deals. There are also several bug-fixes, optimisations and code cleanups. <div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/96099636168698788-7365927827574081911?l=fc-solve.blogspot.com' alt='' /></div> Shlomi Fish ( shlomif@iglu.org.il ) version bugs speed freecell cleanups release fixes code optimization solving solver tag:blogger.com,1999:blog-96099636168698788.post-7365927827574081911 Wed, 14 Jul 2010 09:03:00 +0000 2010-07-14T02:04:13.479-07:00 Solvability Statistics of Two Freecell Games http://fc-solve.blogspot.com/2010/07/solvability-statistics-of-two-freecell.html  While the default <a href="http://en.wikipedia.org/wiki/FreeCell_%28Windows%29">Windows implementation of Freecell</a> only supports playing Freecell with four initial freecells, it can be played with any number of them. In order to make the game more challenging, some people are playing it with a fewer number of freecells. As of today, <a href="http://www.solitairelaboratory.com/fcfaq.html">the Freecell FAQ</a> says that "With two freecells, there are at least 24,161 solvable deals [in the Microsoft 32,000 deals].". However, at the course of researching those layouts using <a href="http://fc-solve.berlios.de/">Freecell Solver</a> (after constructing a solver configuration optimised for solving two-freecell deals), we have found out that more deals can be provably solved. Below one can find the report about the solvability of 2-freecell deals. The executive summary is that: <ol> <li> 25,367 deals were successfully solved. </li> <li> 6,600 deals are provably unsolvable. </li> <li> The other 33 deals are "intractable" - meaning my computer ran out of resources trying to solve them (I limited the range of iterations to 8,200,000, but some of them were killed by the "out-of-memory" daemon earlier). </li> </ol> Solvable <ul> <li> By using the "tea-for-two" meta-moves preset: 25,143. </li> <li> By using <tt>-to 01ABCDE</tt> : 172. </li> <li> By using <tt>-l foss-nessy</tt> : 38. </li> <li> By using the extended range (8,200,000 iterations) <tt>-to 01ABCDE</tt> scan: <tt>grep -l '^This game is solv' *.sol | wc -l</tt> yields: 14. </li> <li> Total: 25,367. </li> </ul> Definitely unsolvable <ul> <li> Fully traversed in the atomic moves preset: 6,513. </li> <li> Found using <tt>grep -l '^I could not solve' *.sol | xargs grep -h '^Total number of states checked' | grep 1200000 | wc -l</tt>. </li> <li> Fully traversed in the extended-range atomic moves preset: 87. </li> <li> Found using <tt>grep -l '^I could not solve' *.sol | xargs grep -h '^Total number of states checked' | grep -v 8200000 | wc -l</tt>. </li> <li> Total: 6,600. </li> </ul> Intractable <ul> <li> After the atomic scan: 172. </li> <li> Found using <tt>grep -l '^I could not solve' *.sol | xargs grep -l '^Total number of states checked is 1200000\.' | wc -l</tt> </li> <li> After the foss-nessy scan: 134. </li> <li> After the 8,200,000 range atomic scan: </li> <li> Killed by the Out-of-memory Killer: <tt>ls | perl -lne 'print if -z' | xargs ls -l | wc -l</tt> : 17. </li> <li> Reached the iterations limit: </li> <li> <tt>grep -l '^I could not solve' *.sol | xargs grep -l '^Total number of states checked is 8200000\.' | wc -l</tt>: 16. </li> <li> Total: 33. </li> </ul> Conclusion and Future Directions The 33 deals that we could not determine whether they were unsolvable or not are: 891, 982, 3129, 5435, 6090, 7214, 7728, 9034, 11266, 12038, 12064, 13659, 13705, 14262, 14445, 14790, 15804, 15957, 16322, 16462, 17184, 17684, 17760, 17880, 18446, 19671, 19678, 20792, 21779, 26124, 27799, 28188, 29577. We would appreciate any further insights about whether they can be solved or not and one option would be to use Freecell solver to solve them on a 64-bit machine with more memory available than what I have. In the future, we'd like to work on the <a href="http://fc-solve.berlios.de/to-do.html#orig_calc_states">"States calculated from the original"</a> feature which should reduce memory consumption considerably, especially on 64-bit architectures. After reading the report of <a href="http://kevin.atkinson.dhs.org/freecell/">Kevin Atkinson's and Shari Holstege's solver</a> it seems that we can also save space by re-using old positions that have been determined to be dead-ends, so we'd like to explore that. We'd also like to explore using an on-disk storage to store the states / positions such as <a href="http://1978th.net/tokyocabinet/">Tokyo Cabinet</a>. That or we can try adding a bigger swap partition. <div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/96099636168698788-8613246077246361132?l=fc-solve.blogspot.com' alt='' /></div> Shlomi Fish ( shlomif@iglu.org.il ) statistics solvability deals two freecell solving solver layouts tag:blogger.com,1999:blog-96099636168698788.post-8613246077246361132 Tue, 13 Jul 2010 04:50:00 +0000 2010-07-12T21:53:36.597-07:00 Tech Tip: Automatically Restoring the Wifi Connection on Linux http://community.livejournal.com/shlomif_tech/50188.html Having bought a new laptop and after installing Mandriva Linux on it, I noticed that the wifi (wireless networking) connection tends to get disconnected after a while. Eventually I wrote this script to automatically restore it. Feel free to re use it under the terms of the <a href="http://en.wikipedia.org/wiki/MIT_License">MIT X11 License</a>. You may need to adjust some parameters. Run this script as root in the background (using <a href="http://tmux.sourceforge.net/">tmux</a> or GNU screen or whatever). <pre> #!/bin/bash while true ; do if ! ping -c 1 10.0.0.1 ; then /etc/init.d/network restart fi sleep 5; done </pre> Hope it helps. Shlomi Fish ( shlomif@iglu.org.il ) linux tip tech mandriva tech tip http://community.livejournal.com/shlomif_tech/50188.html http://community.livejournal.com/shlomif_tech/50188.html Sun, 11 Jul 2010 08:02:13 GMT