Browsing my way to tonight and hoping I’ve got something to show for it.Tumblr (3.0; @fhsm)http://fhsm.tumblr.com/<p>In older versions of debian you could use update-rc.d to remove auto-start services. Now insserv is used to change the boot sequence. To remove a service do:</p> <p>sudo insserv -r &lt;service&gt;</p>http://fhsm.tumblr.com/post/22254632155http://fhsm.tumblr.com/post/22254632155Wed, 02 May 2012 09:52:41 -0400<a href="http://blip.tv/clojure">Watch Clojure episodes on blip.tv</a>http://fhsm.tumblr.com/post/10047754775http://fhsm.tumblr.com/post/10047754775Sat, 10 Sep 2011 19:55:46 -0400<a href="http://www.postgresql.org/docs/9.0/static/tutorial-window.html">PostgreSQL: Documentation: Manuals: PostgreSQL 9.0: Window Functions</a>http://fhsm.tumblr.com/post/9992617667http://fhsm.tumblr.com/post/9992617667Fri, 09 Sep 2011 12:22:13 -0400<p>If you&#8217;ve got a table of historical pricing information (<em>Prices</em>) where each item has a has an ID (not as in row primary key, but as in ISBN style ID) you can get the average price using a PostgreSQL <a href="http://www.postgresql.org/docs/9.0/static/tutorial-window.html">window function</a>.</p> <p><em>SELECT <a href="http://www.postgresql.org/docs/8.2/static/sql-select.html">DISTINCT ON (&#8220;id&#8221;)</a> &#8220;id&#8221;, <a href="http://www.postgresql.org/docs/9.0/static/tutorial-window.html">avg(&#8220;price&#8221;) OVER (PARTITION BY &#8220;id&#8221;)</a> FROM &#8220;Prices&#8221;;</em></p> <p>This works by grouping all the items by item ID and then calculating an average value of the prices. Normally this would return the &#8220;avg&#8221; column with the average price for that item in every row. By adding the distinct requirement you limit it to just one row per item ID. </p>http://fhsm.tumblr.com/post/9973567978http://fhsm.tumblr.com/post/9973567978Thu, 08 Sep 2011 19:23:24 -0400<a href="http://sympy.org/">SymPy</a>: <p>Symbolic math library for python</p>http://fhsm.tumblr.com/post/8294645250http://fhsm.tumblr.com/post/8294645250Sun, 31 Jul 2011 10:58:36 -0400<a href="http://www.thenewboston.com/?page_id=14">TheNewBoston – Free Educational Video Tutorials on Computer Programming and More! » Tutorials</a>: <p>Short video tutorials on a wide range of topics</p>http://fhsm.tumblr.com/post/7890547861http://fhsm.tumblr.com/post/7890547861Thu, 21 Jul 2011 17:31:25 -0400<a href="http://blog.monitis.com/index.php/2011/07/05/25-apache-performance-tuning-tips/">25 Apache Performance Tuning Tips at SysAdmin Tips and Tools</a>http://fhsm.tumblr.com/post/7705721360http://fhsm.tumblr.com/post/7705721360Sun, 17 Jul 2011 00:52:14 -0400<a href="http://homepage.mac.com/s_lott/books/python/html/p02/p02c10_adv_seq.html#multi-dimensional-arrays-or-matrices">Functional Programming with Collections — Building Skills in Python</a>http://fhsm.tumblr.com/post/7595735780http://fhsm.tumblr.com/post/7595735780Thu, 14 Jul 2011 01:32:51 -0400<a href="http://entirelysubjective.com/programming/data-driven-programming-haskell-1/">Data Driven Programming in Haskell (Part 1) | Entirely Subjective</a>http://fhsm.tumblr.com/post/7565311007http://fhsm.tumblr.com/post/7565311007Wed, 13 Jul 2011 06:27:12 -0400<a href="http://easyxdm.net/wp/category/examples/">Examples/How-to’s | easyXDM</a>: <p>how to make easy json cross domain requests (ex disqus)</p>http://fhsm.tumblr.com/post/7471014997http://fhsm.tumblr.com/post/7471014997Sun, 10 Jul 2011 23:28:35 -0400<a href="https://github.com/nicolas33/offlineimap">nicolas33/offlineimap at master - GitHub</a>http://fhsm.tumblr.com/post/7218287835http://fhsm.tumblr.com/post/7218287835Mon, 04 Jul 2011 05:04:37 -0400<a href="http://blackstag.com/blog.posting?id=5">The Blackstag Blog Post # 5 -> Guide to Programming in Clojure for Beginners</a>http://fhsm.tumblr.com/post/7162183079http://fhsm.tumblr.com/post/7162183079Sat, 02 Jul 2011 17:55:16 -0400<a href="http://www.khanacademy.org/#statistics">Khan Academy</a>http://fhsm.tumblr.com/post/6900586295http://fhsm.tumblr.com/post/6900586295Sat, 25 Jun 2011 12:27:31 -0400<p>Neat introspection trick in python, found <a href="http://www.scribd.com/doc/58306088/Bad-Ideas#ad_unit=Doc_Sideboard_MediumRectangle_BTF_300x250&amp;url=http%3A//www.scribd.com/doc/58306088/Bad-Ideas%23ad_unit%3DDoc_Sideboard_MediumRectangle_BTF_300x250%26url%3Dhttp%253A//www.scribd.com/doc/58306088/Bad-Ideas%2523ad_unit%253DDoc_Sideboard_MediumRectangle_BTF_300x250%2526url%253Dhttp%25253A//www.scribd.com/doc/58306088/Bad-Ideas%2526attributes%253DExtension%25253Dpdf%252526AdLayout%25253D-1472436212%252526DocUser%25253D27986021%252526Document%25253D58306088%252526FourGen%25253DTrue%252526Category%25253D240%2526skip%253D26%26attributes%3DExtension%253Dpdf%2526AdLayout%253D-1472436212%2526DocUser%253D27986021%2526Document%253D58306088%2526FourGen%253DTrue%2526Category%253D240%26skip%3D0&amp;attributes=Extension%3Dpdf%26AdLayout%3D-1472436212%26DocUser%3D27986021%26Document%3D58306088%26FourGen%3DTrue%26Category%3D240&amp;skip=0">here</a></p> <p><em>import sys</em></p> <p><em>def caller_lineno(): return sys._getframe(1).f_lineno</em></p> <p><em>def caller_filename(): return sys._getframe(1).f_code.co_filename</em></p>http://fhsm.tumblr.com/post/6799303252http://fhsm.tumblr.com/post/6799303252Wed, 22 Jun 2011 15:40:34 -0400python<a href="http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-00-introduction-to-computer-science-and-programming-fall-2008/video-lectures/">MIT OpenCourseWare | Electrical Engineering and Computer Science | 6.00 Introduction to Computer Science and Programming, Fall 2008 | Video Lectures</a>http://fhsm.tumblr.com/post/3366724893http://fhsm.tumblr.com/post/3366724893Fri, 18 Feb 2011 18:58:33 -0500<a href="http://www.witopia.net/index.php/support/why/">Why do I need a personal VPN? | WiTopia.Net</a>http://fhsm.tumblr.com/post/3348257044http://fhsm.tumblr.com/post/3348257044Thu, 17 Feb 2011 18:50:53 -0500<a href="http://www.autonlab.org/tutorials/">Statistical Data Mining Tutorials</a>http://fhsm.tumblr.com/post/3310827975http://fhsm.tumblr.com/post/3310827975Tue, 15 Feb 2011 16:05:16 -0500<a href="https://github.com/greim/smallfsm/blob/master/smallfsm.js">smallfsm.js at master from greim's smallfsm - GitHub</a>http://fhsm.tumblr.com/post/3291418744http://fhsm.tumblr.com/post/3291418744Mon, 14 Feb 2011 12:40:20 -0500<a href="http://marketplace.tutsplus.com/category/web-development">Web Development - Tuts+ Marketplace</a>http://fhsm.tumblr.com/post/3218646891http://fhsm.tumblr.com/post/3218646891Thu, 10 Feb 2011 13:17:21 -0500<a href="http://www.webmonkey.com/2010/02/Web_Typography_Tutorial_-_Lesson_1/">Web Typography Tutorial – Lesson 1 | Webmonkey | Wired.com</a>http://fhsm.tumblr.com/post/3212923507http://fhsm.tumblr.com/post/3212923507Thu, 10 Feb 2011 01:35:06 -0500