https://chakravir.net/ 2026-07-26T15:09:47+00:00 https://chakravir.net/ https://chakravir.net/lib/tpl/dokuwiki/images/favicon.ico text/html 2026-07-26T15:08:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:dtd_cheat_sheet&rev=1785103684&do=diff Document Type Definition (DTD) * A Document Type Definition (DTD) defines the legal building blocks of an XML document. It defines the document structure with a list of legal elements and attributes. * A DTD can be internally defined e.g. <!DOCTYPE root-element [ element-declarations ]> text/html 2026-07-26T14:57:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:video_games&rev=1785103061&do=diff Video Games I have never really been an avid video game player but have played a couple. This summarizes the games I have conquered and the ones on my to-play list. Non-PS2 I have played video games on the following systems * VIC-20 * Nintendo (Mario 1 & 3, Super C, TMNT, Megaman3 etc) text/html 2026-07-26T14:53:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=start&rev=1785102815&do=diff This is the main page. Right now it is just a placeholder for future content. text/html 2026-07-26T14:49:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:xml_schema_cheat_sheet&rev=1785102593&do=diff XML Schema * XML Schema is an XML-based alternative to DTDs. It is the successor to DTDs because it is richer and more extensible. It describes the structure of an XML document. * The XML Schema language is also referred to as XML Schema Definition (XSD). text/html 2026-07-26T14:29:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:javascript_cheat_sheet&rev=1785101380&do=diff Javascript Cheat Sheet This is a summarized form of the JavaScript Tutorial. For reference JavaScript specifications can be found here . What is Javascript * JavaScript is the most popular scripting language on the internet and works in all major browsers. * It is a lightweight, interpreted language that is embedded into webpages to add interactivity. text/html 2026-07-26T14:21:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:perl_cheat_sheet&rev=1785100881&do=diff Perl Cheat Sheet Perl is a highly capable, feature-rich programming language with over 25 years of development. These notes follow the path of the Learning Perl book. * First line should be #!/usr/bin/perl or #!/usr/bin/env perl * Perl compiles to byte-code before executing text/html 2026-07-26T14:21:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=sidebar&rev=1785100876&do=diff This is the sidebar a b c text/html 2026-07-26T14:11:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:python_cheat_sheet&rev=1785100276&do=diff Python Cheat Sheet Python is a dynamic object-oriented programming language with extensive standard libraries. These notes summarize the Python 3.1 tutorial. * python/python3.1 is the command-line interpreter with readline where available. * python -c command runs a single command. text/html 2026-07-26T14:01:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:armageddon&rev=1785099687&do=diff A Newsweek June, 1999 poll showed that 52% of Americans believe that “Jesus will return during the next millennium” (2001-3000 CE) . Assuming that the coming of Jesus is concurrent with the end of the world, this is a scary fact. The majority of the citizens of the most powerful country in the world believe that the world will end in the next thousand years. text/html 2026-07-26T13:59:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:lpic-1_notes&rev=1785099543&do=diff LPIC-1 / Linux+ Cheat Sheet LX0-101 101 System Architecture 14% 101.1 Determine and Configure hardware settings (LCN-1 CTL-3) * Enable and disable integrated peripherals * Configure systems with or without external peripherals such as keyboards text/html 2026-07-26T13:18:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:articles&rev=1785097121&do=diff Articles This is a list of news articles that I have found interesting and sometimes a brief comment about them. I typically archive these articles locally but because of copyright reasons I can't link the archived copies here. Medical * Acupuncture tops Conventional Therapy for lower back pain - This is good information for back-pain sufferers (including myself, though mine is low-intensity and infrequent). It means that acupuncture is a valid, proven treatment alternative. Even more int… text/html 2026-07-26T12:37:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:n770&rev=1785094644&do=diff My Nokia N770 Internet Tablet I recently bought a Nokia N770 Internet Tablet which looked like a fun, useful toy to play around with as an ultra-portable computer with a touch screen and wireless access. I had been thinking of getting a portable web browser for a while but neither the PSP or the Nintendo DS seemed ideal, so when I heard about the N770 internet tablet for about $100 I had to have it. text/html 2026-07-26T12:30:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:r_cheat_sheet&rev=1785094231&do=diff R Cheat Sheet R is a free software environment for statistical computing and graphics. These notes summarize the free R CodeSchool tutorial. Basics * R is the command-line interpreter * install.pa­ckages(“gg­plot2”) to install additional packages * Expressions are evaluated and displayed e.g. 1, 1+1, text/html 2026-07-26T12:27:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=code&rev=1785094049&do=diff Code This collects in one place various bits of code and associated documentation I have written that can be made publicly available and may be of use to others. * Fetchyahoo - is a perl script written to fetch mail from a Yahoo webmail account into a local mail spool or mailbox or forward it to another e-mail address text/html 2026-07-26T10:49:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:html_cheat_sheet&rev=1785088156&do=diff HTML Cheat Sheet This is a summarized form of the HTML Tutorial. For reference this is the HTML Specification . What is HTML * HTML stands for Hyper Text Markup Language. * An HTML file is a text file containing small markup tags telling a web browser how to display the page. It must end with text/html 2026-07-26T10:48:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:books&rev=1785088135&do=diff Reading I've been an avid reader most of my life. This is a list of books I've recently read and a list of books I plan to read soon. My Amazon Wishlist contains books I want to read (or reread) but do not currently own. Currently reading * Mona Lisa Overdrive - William Gibson text/html 2026-07-26T10:44:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:css_cheat_sheet&rev=1785087847&do=diff CSS Cheat Sheet This is a summarized form of the CSS Tutorial. For reference this is the CSS2 Specification . What is CSS * CSS stands for Cascading Style Sheets. * Styles define how to display HTML elements. Style sheets are collections of styles. * Multiple style sheets will cascade into a single style definition. text/html 2026-07-26T10:25:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=code:scheduler&rev=1785086701&do=diff The Oracle Scheduler (dbms_scheduler) dbms_scheduler is a full job scheduler built into the Oracle database since version 10g Release 1. It is a more robust and fully-featured replacement for the old, primitive dbms_job scheduling system. I have been a primary contributor to this since January 2001. This is a collection of public info pertaining to the Scheduler collected in one place. text/html 2026-07-26T09:33:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=main&rev=1785083633&do=diff This is my latest attempt to collect my thoughts and other bits and pieces in a single easily accessible place. Either choose a category from the left, or search for a topic or take a look at recent changes or additions I have made. text/html 2026-07-26T09:03:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://chakravir.net/doku.php?id=notes:creationism&rev=1785081837&do=diff Gallup polls over the past 25 years have shown that that percentage of Americans that believe that “God created man in present form” has stayed constant at about 45%. However, the percentage of people that believe that “the idea that God created human beings pretty much in their present form at one time within the last 10,000 years