Re: [Ilugc] learning a new language
On Thu, 2011-02-10 at 11:23 +0530, Vinod Parthasarathy wrote: Here's one way of writing factorial in Haskell. factorial 0=1 factorial n=n*factorial(n-1) neat! Nice, isn't it? Just the way you learnt it in school! Pattern matching rules! btw, welcome back to the list. -- regards KG http://lawgon.livejournal.com Coimbatore LUG rox http://ilugcbe.techstud.org/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
On 10/02/11 11:23 AM, Vinod Parthasarathy wrote: Here's one way of writing factorial in Haskell. factorial 0=1 factorial n=n*factorial(n-1) And here's the pythonic way: factorial = lambda n: n and n*factorial(n-1) or 1 Succinct :-) Or even better: from math import factorial # Batteries included! print factorial(6) The Haskell version is also neat (more readable IMO). Cheers, Chandrashekar. -- http://www.chandrashekar.info/ http://www.slashprog.com/ PS: The above pythonic code doesn't work for negative numbers. ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
On 02/09/2011 11:57 AM, Natarajan V wrote: Out of personal experience, after knowing UML, switching between C++, Visual C++, Java, Objective C and C# was trivial. You start thinking in OOPS, and the language becomes just a language and your idea/ logic is in OOPS. The translation becomes trivial, to about 90% of the work. UML does not make you think object oriented. You got to learn to think object oriented and UML simply helps you present/communicate it with your colleagues. -- .o. I'm a Free man. I use Free Software. ..o ooo http://www.joesteeve.org/ signature.asc Description: OpenPGP digital signature ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] [OT] Functional Programming [Was: Re: learning a new language]
Hi, On 02/10/2011 01:57 PM, Chandrashekar Babu wrote: On 10/02/11 11:23 AM, Vinod Parthasarathy wrote: Here's one way of writing factorial in Haskell. factorial 0=1 factorial n=n*factorial(n-1) And here's the pythonic way: factorial = lambda n: n and n*factorial(n-1) or 1 Succinct :-) Or even better: from math import factorial # Batteries included! print factorial(6) The Haskell version is also neat (more readable IMO). ... just thought I'd share this since we were slowly drifting into the functional programming, here is one series of articles I read back-to-back in one go when I stumbledupon'd[1] it: http://devlicio.us/blogs/christopher_bennage/archive/2010/09/06/what-is-functional-programming.aspx cheers, - steve [1] www.stumbleupon.com (also see my sig) -- random spiel: http://lonetwin.net/ what i'm stumbling into: http://lonetwin.stumbleupon.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
Hi Plagiarized from Cleartrips.com blog:- http://blog.cleartrip.com/journal/2007/7/7/lisp-is-sin-and-all-data-is-code.html I believe Lisp, as a language, attracts a very specific type of person--and it's not the average bloke who takes computer science classes in college or enrols in a diploma course because programming is where the jobs are. regards Nataraj On Wed, Feb 9, 2011 at 9:31 AM, Siddhesh Poyarekar siddhesh.poyare...@gmail.com wrote: On Wed, Feb 9, 2011 at 2:04 PM, steve st...@lonetwin.net wrote: I'd say learn C only if you are interested in systems programming. There just is no way to do systems programming and /not/ know C -- but that's about the only thing C would be useful for these days. Since you know python, you won't learn anything new from C++ and will only end up wondering why C++ programmers do that to themselves. If you want to improve programming chops, learn lisp or any other functional programming language. +1 And if you want to explore the programming languages of your younger days, but with a twist, then there is always multithreaded COBOL ;) -- Siddhesh Poyarekar http://siddhesh.in ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
On Thu, 2011-02-10 at 13:57 +0530, Chandrashekar Babu wrote: And here's the pythonic way: factorial = lambda n: n and n*factorial(n-1) or 1 lambda is not considered pythonic (by guido anyway) -- regards KG http://lawgon.livejournal.com Coimbatore LUG rox http://ilugcbe.techstud.org/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On Wed, Feb 9, 2011 at 1:37 PM, Rahul Sundaram methe...@gmail.com wrote: conclusions after that point. If you want to discuss this further, catch me up on IRC or mail me offlist. I am sure the list needn't be bothered further with this. No way. Just because people are not contributing doesn't mean they are not interested. I am all ears on this thread. -- A ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] linux compatible tv tuner card
On Thu, 2011-02-10 at 16:05 +0530, ravi jaya wrote: hello folks, I am looking for a linux compatible tv tuner card . Anything with the bt878 chipset will work with bttv. I know of at least one TV Tuner card, the Pinnacle PCTV Pro PCI card that works with Linux. -- Roshan George ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On Thu, 2011-02-10 at 11:09 +0100, Aanjhan R wrote: On Wed, Feb 9, 2011 at 1:37 PM, Rahul Sundaram methe...@gmail.com wrote: conclusions after that point.If you want to discuss this further, catch me up on IRC or mail me offlist. I am sure the list needn't be bothered further with this. No way. Just because people are not contributing doesn't mean they are not interested. I am all ears on this thread. and now to add some ghee to the flames: My observations on the different modes of development now existent, the licenses they choose and how the licenses affect the development. 1. The classic mode which we all love and respect: Community driven, meritocracy ruled projects. These are hugely successful in attracting developers and although the top rung may not change much there is a constant in and out flow of developers in the lower rungs. As these projects reach maturity, the usually produce non profit foundations to take care of organisational aspects - examples: linux kernel (GPL), apache set of projects (Apache license) python and postgresql (BSD license) and many others of course. 2. Company mode (free) - where the project is mainly run by a company and the said company does not have any proprietary products based on the project in question. Usually these companies are able to attract large number of developers because the developers know that the open source version they are working on is the same version that the company is working on. Companies almost invariably choose the GPL as suits are scared that some one may 'steal' their code. Any way a prime example of this type is Red hat. There is the curious case of PHP where a company has 'downgraded' it's license from GPL to a BSD style license. Wonder why ;-) Sort of knocks the apparent logic of the wine license change into a hat. More on this later. 3. Company mode (somewhat free) - here the company has an open source project, and one or more proprietary products built on the open source project. Looks like wine (and codeweavers) is one of them. Usually the company does the bulk of the development and does not attract (and does not really want) too many outside developers. Company decides the path to be followed with not much say for others. Or in extreme cases like MySQL (and mono?) the company will not take contributions unless the copyright is handed over. From what I can make out from the wine case, it started as a community project under the BSD license, but codeweavers moved in to do the major development, and changed the license to 'protect' their interests and investment. An interesting comment in the discussion was - BSD licensed projects are based on trust, with LGPL the necessity for trust is eliminated - to me this sounds very sad. 4. Company mode (bogus) - here the company releases a watered down version as open source mainly as bait to get customers for the proprietary version. This does not attract developers as the the version they are working on is not the actively developed version. These companies are a disgrace and instrumental in turning a lot of people away from open source. The all either use GPL or something even more restrictive. 5. Autorickshaw mode - where the whole development team will fit into an autorickshaw. This segment rarely thinks too much about license, and anyway they can change license at will. When I first released something through sourceforge, license was one thing that I had to choose - GPL was the default and I clicked it - I only read the GPL about 3 years later ;-) 6. Closet mode - this is a new one that I just discovered a couple of months back. Here the guy develops software in secret, wraps it in the GPL and sells copies of it to the customers. He has discovered that the GPL does not oblige him to put up the source on the internet. Theoretically his customers can put it up themselves, but in practice it is impossible. I am sure if one sees the software, it would have to be installed by hand in various parts of the operating system. The customer, in the first place, having paid for it is not going to give it away free. And in the second place it is doubtful if he would have the knowledge to package it for release in a usable form. We are all aware of the time consuming processes we have to go through to make a release usable. And anyway without support from the developer, putting the code up someplace is an exercise in futility. I think this is a glaring loophole in the GPL and is why I had suggested a 5th freedom on my blog. note 1: Change of license is only possible if all the contributors agree to the change. Even if one disagrees, his work has to be removed before the license is changed. Which means that once the number of contributors reaches a critical mass, change of license is impossible. note 2: Although software cannot be stolen or made proprietary (only a copy can be stolen or made proprietary), the owner of the copyright can sell the copyright (as opposed to
Re: [Ilugc] learning a new language
On Thu, Feb 10, 2011 at 3:19 PM, Kenneth Gonsalves law...@thenilgiris.comwrote: lambda is not considered pythonic (by guido anyway) According to paul graham most of the modern languages are created by borrowing concepts from lisp. In his own words ( http://www.paulgraham.com/icad.html) If you look at these languages in order, Java, Perl, Python, you notice an interesting pattern. At least, you notice this pattern if you are a Lisp hacker. Each one is progressively more like Lisp. Python copies even features that many Lisp hackers consider to be mistakes. You could translate simple Lisp programs into Python line for line. It's 2002, and programming languages have almost caught up with 1958. yes, lambda was borrowed from lisp and it is not pythonic. -- Arun S.A.G http://zer0c00l.in/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
On Thu, Feb 10, 2011 at 5:12 PM, Arun SAG saga...@gmail.com wrote: On Thu, Feb 10, 2011 at 3:19 PM, Kenneth Gonsalves law...@thenilgiris.comwrote: lambda is not considered pythonic (by guido anyway) According to paul graham most of the modern languages are created by borrowing concepts from lisp. This created some hype. I have decided to learn it in my free time, atleast to understand, what it is. In his own words ( http://www.paulgraham.com/icad.html) If you look at these languages in order, Java, Perl, Python, you notice an interesting pattern. At least, you notice this pattern if you are a Lisp hacker. Each one is progressively more like Lisp. Python copies even features that many Lisp hackers consider to be mistakes. You could translate simple Lisp programs into Python line for line. It's 2002, and programming languages have almost caught up with 1958. yes, lambda was borrowed from lisp and it is not pythonic. -- Arun S.A.G http://zer0c00l.in/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc -- Regards, Sathishkumar D ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
Hi, On 10/02/11 3:19 PM, Kenneth Gonsalves wrote: lambda is not considered pythonic (by guido anyway) Well, a proposal for implementing multi-line statements in lambda was earlier rejected by Guido as the proposed solutions were considered unpythonic. The reason being, it was difficult to come up with a clean syntax for representing multi-line blocks within an expression without breaking Python's indentation rules. lambda expressions as such was not mentioned by Guido as unpythonic anywhere. Infact, any python code that follows The Zen of Python can be considered pythonic - and I don't see how lambda expressions used in a comprehensible way break them. Cheers, Chandrashekar. -- http://www.chandrashekar.info/ http://www.slashprog.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
On 10/02/11 5:12 PM, Arun SAG wrote: yes, lambda was borrowed from lisp and it is not pythonic. Rather, most of python was borrowed from Modula-3. That doesn't make python unpythonic ;-) Cheers, Chandrashekar -- http://www.chandrashekar.info/ http://www.slashprog.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] mysql db to db query
Hi Is it possible to quary and fetch data in one mysql db and store it in a second on . ya its possible I have machine M1 and M2 with mysql configured . There is a DB in M1 namely employee_details . Now I have to fectch all the recods in M1 employee_details from and have to store M2 mysql database via mysql query. Is it possible or is it my ignorance about db concepts . see this link - http://dev.mysql.com/doc/refman/5.0/en/copying-databases.html Regards sathia http://www.sathia27.wordpress.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
On Thu, 2011-02-10 at 17:39 +0530, Chandrashekar Babu wrote: lambda expressions as such was not mentioned by Guido as unpythonic anywhere. he wanted to drop lambda and I think reduce and map - but he was made to change his mind and reluctantly kept them. -- regards KG http://lawgon.livejournal.com Coimbatore LUG rox http://ilugcbe.techstud.org/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] [JOB] Embedded dev engineers
I'm building a small high powered team of embedded engineers to build devices around microcontrollers like Atmel, PIC and ARM7/9/Cortex-M3 core based μCs with associated components liek Flash, communication controllers, SPI devices etc. We've currently built 2 devices, one based on the PIC and one on ATMega32. Am looking for self starters who like working in startup environments. Folks who have done work with such microcontrollers both hardware and software, dev/debug tools etc are the people we are looking for. As expected in startups, we want engineers who love the breadth, willing to plunge into new areas to learn and contribute. The startup is based in Bangalore. -- Mohan Sundaram ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] [OT] Functional Programming
On 10/02/11 3:15 PM, steve wrote: http://devlicio.us/blogs/christopher_bennage/archive/2010/09/06/what-is-functional-programming.aspx Interesting article - concepts were crisp and to the point. Thanks for the sharing! Cheers, Chandrashekar. -- http://www.chandrashekar.info/ http://www.slashprog.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
On 10/02/11 5:59 PM, Kenneth Gonsalves wrote: he wanted to drop lambda and I think reduce and map - but he was made to change his mind and reluctantly kept them. True. The lambda expressions still exist on Python 3000 as there are no other pythonic alternatives to create anonymous functions. It was impossible at this time to come up with a better alternative to existing lambda expression that could support multi-line statements - much like Proc objects in Ruby for instance, without breaking existing Python rules (indentation rules for example). The existing lambda expression as such does not break any rules to be termed as unpythonic. Even 'map' and 'filter' exists on Python 3000 as most of the community believe them to be more simpler and readable than list comprehensions in many cases. Whether using them is pythonic or not - can be subjective ;-). But they are redundant variants of list comprehensions. The 'reduce' was removed in Python 3000 (or rather moved to functools, instead) to maintain consistency overall. Cheers, Chandrashekar. -- http://www.chandrashekar.info/ http://www.slashprog.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
On 10/02/11 12:14 PM, Kenneth Gonsalves wrote: However the good news is that I seem to be getting on ok with C - feels very primitive, but the good thing is the internet which explains all the errors and warnings. Last three times I tried, internet had not reached India. You should have started with the book The C Programming Language by Brian Kernighan and Dennis Ritchie (2nd Edition). It's never too late - you can start with it right now - best read cover to cover while practicing all the concepts/programs and working out the exercises at the end of each chapter. Another book worth reading (of course, after you've mastered the basics) - C: A Reference Manual by Samuel Harbison and Guy L. Steele (5th Edition). Cheers, Chandrashekar. -- http://www.chandrashekar.info/ http://www.slashprog.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] [JOB]Embedded Dev engineers
Posting with email id to send CVs to. Apologies to the members for the repost. I'm building a small high powered team of embedded engineers to build devices around microcontrollers like Atmel, PIC and ARM7/9/Cortex-M3 core based μCs with associated components liek Flash, communication controllers, SPI devices etc. We've currently built 2 devices, one based on the PIC and one on ATMega32. Am looking for self starters who like working in startup environments. Folks who have done work with such microcontrollers both hardware and software, dev/debug tools etc are the people we are looking for. As expected in startups, we want engineers who love the breadth, willing to plunge into new areas to learn and contribute. The startup is based in Bangalore. Please send your CVs to moahn.tux.j...@gmail.com -- Mohan Sundaram ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] make tutorial
Hi, --- On Fri, Jun 18, 2010 at 4:59 PM, Girish Venkatachalam girishvenkatacha...@gmail.com wrote: | This mail is an attempt to teach makefiles in UNIX. | ... | As you can see it is very complicated, complex and needlessly boring. \-- Made a presentation on GNU Make: http://www.shakthimaan.com/downloads.html#dum-ka-biryani-make-for-each-other Feedback appreciated. SK -- Shakthi Kannan http://www.shakthimaan.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] mysql db to db query
On Thu, Feb 10, 2011 at 4:33 PM, JAGANADH G jagana...@gmail.com wrote: Hi Is it possible to quary and fetch data in one mysql db and store it in a second on . I have machine M1 and M2 with mysql configured . There is a DB in M1 namely employee_details . Now I have to fectch all the recods in M1 employee_details from and have to store M2 mysql database via mysql query. Is it possible or is it my ignorance about db concepts . Google for SQL join. SQL is a worthwhile programming language to learn. There are some interesting threads on programming languages in LUG now but SQL does not fit into any of those moulds. It is a DB querying language that is very powerful and easy too. -Girish ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] need a web mail client with pop3 support
There is nothing mutt does not support. Pop3, imap, pop3s, imaps... -Girish On Thu, Feb 10, 2011 at 7:26 PM, steve st...@lonetwin.net wrote: On 02/09/2011 09:26 PM, Raja Subramanian wrote: Dear All, I am moving ~70 mail boxes from an old email provider to a new one. During the migration, I want to provide users access to their old POP3 mailboxes using a web mail client. All web mail clients I have used and evaluated - Squirrel Mail, Round Cube, etc - are IMAP only, and do not support POP3. Any recommendations are for a POP3 web mail client are very welcome. Thanks! Horde supports pop3: http://www.horde.org/webmail/ However, I personally have used it only in an IMAP setup so do not know how good/easy/painless it is to setup and use for POP3 cheers, - steve -- random spiel: http://lonetwin.net/ what i'm stumbling into: http://lonetwin.stumbleupon.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc -- Gayatri Hitech http://gayatri-hitech.com gir...@gayatri-hitech.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] make tutorial
Ha ha. On Thu, Feb 10, 2011 at 8:17 PM, Shakthi Kannan shakthim...@gmail.com wrote: Hi, --- On Fri, Jun 18, 2010 at 4:59 PM, Girish Venkatachalam girishvenkatacha...@gmail.com wrote: | This mail is an attempt to teach makefiles in UNIX. | ... | As you can see it is very complicated, complex and needlessly boring. \-- Made a presentation on GNU Make: http://www.shakthimaan.com/downloads.html#dum-ka-biryani-make-for-each-other Feedback appreciated. Very funny you quote me from history kind of like dinosaur. You have made a fantastic presentation on this. Brilliant. Some of the advanced concepts towards the later slides I have never used and I doubt if many people use them at all. But there is no learning like doing yourself. -Girish -- Gayatri Hitech http://gayatri-hitech.com gir...@gayatri-hitech.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] need a web mail client with pop3 support
On 02/10/2011 08:59 PM, Girish Venkatachalam wrote: There is nothing mutt does not support. Pop3, imap, pop3s, imaps... If you had taken the time to follow list rules and attempted to quote the mail, there would've been an off-chance that you actually /read/ what was requested before shooting off a reply. Sorry for my curt response, but you have been consistently top-posting irrelevant responses which is pretty annoying. Please resist the urge to respond to every mail here. cheers, - steve -- random spiel: http://lonetwin.net/ what i'm stumbling into: http://lonetwin.stumbleupon.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] linux compatible tv tuner card
On Thu, Feb 10, 2011 at 4:05 PM, ravi jaya ravijaya.l...@gmail.com wrote: hello folks, I am looking for a linux compatible tv tuner card . Could you please share your experience with the same. if you were current using it. I would appreciate, if you would post back the name and model which is compatible with linux would be great. I use a very old Pinnacle card bought from the tech-com brand. It works remarkably well though the card is really very old. Fabulous! Even the Windows driver does not work! -Girish ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] need a web mail client with pop3 support
Hi, On Thu, Feb 10, 2011 at 8:59 PM, Girish Venkatachalam girishvenkatacha...@gmail.com wrote: There is nothing mutt does not support. mutt is not a web mail client :) Thanks -- Thank you Balachandran Sivakumar Arise Awake and stop not till the goal is reached. Mail: benignb...@gmail.com Blog: http://benignbala.wordpress.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] mysql db to db query
On 02/10/2011 08:59 PM, Girish Venkatachalam wrote: On Thu, Feb 10, 2011 at 4:33 PM, JAGANADH Gjagana...@gmail.com wrote: Hi Is it possible to quary and fetch data in one mysql db and store it in a second on . I have machine M1 and M2 with mysql configured . There is a DB in M1 namely employee_details . Now I have to fectch all the recods in M1 employee_details from and have to store M2 mysql database via mysql query. Is it possible or is it my ignorance about db concepts . Google for SQL join. [...snipped rambling about SQL...] Could you please elaborate on just exactly how does one use SQL join to ... fectch all the recods in M1 ... and ...store [in] M2 ... where M1 and M2 are clearly specified as 2 different machines with different instances of mysql ? I'd really be interested in this ! cheers, - steve -- random spiel: http://lonetwin.net/ what i'm stumbling into: http://lonetwin.stumbleupon.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] mysql db to db query
On 10/02/11 4:33 PM, JAGANADH G wrote: Is it possible to quary and fetch data in one mysql db and store it in a second on . I have machine M1 and M2 with mysql configured . There is a DB in M1 namely employee_details . Now I have to fectch all the recods in M1 employee_details from and have to store M2 mysql database via mysql query. You might want to try using mysqldump as mentioned by Sathia. If you want to replicate just one table from another machine (M1), you can first try creating a federated table on the target machine (M2) which has the same table structure as the table in M1. On target machine (M2) you might want to try something like below: -- CREATE TABLE `fed_emp_details`( `id`SERIAL PRIMARY KEY, `name` VARCHAR(32) NOT NULL, `dept` VARCHAR(32) NOT NULL ) ENGINE=FEDERATED CONNECTION='mysql://someuser@M1:3306/mydb/employee_details'; -- You might want to modify the table structure and connection details to suit your requirement. Now running queries on the federated table on M2 will actually show/affect the contents from table that is stored on M1. Now, you can use a query similar to the one below on the target machine (M2) to actually replicate the table: -- CREATE TABLE `employee_details` ENGINE=MyISAM AS SELECT * FROM `fed_emp_details`; -- This method could be used only if you do not have the luxury of running mysqldump on your shell prompt. Of course, this technique is non-optimal, and might not work if your source table is not using MyISAM storage engine. Some deployments of MySQL server might also have FEDERATED engine disabled. Nevertheless, it is worth noting that there is a possibility. To know more about federated table usage, kindly lookup the URL: http://dev.mysql.com/doc/refman/5.0/en/federated-use.html Cheers, Chandrashekar. -- http://www.chandrashekar.info/ http://www.slashprog.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] mysql db to db query
On 10/02/11 4:33 PM, JAGANADH G wrote: Is it possible to quary and fetch data in one mysql db and store it in a second one . If you can write a script in PHP/Perl/Python/Ruby or any other language of your choice, you can open two database connections - one to the source host and one to the destination host: 1. Execute the query 'SHOW CREATE TABLE `employee_details`' on the source host to get the table structure. 2. Execute the resultset column (which should be a valid CREATE TABLE statement) as a query on destination host. 3. Now fetch rows from the table on the source host and insert the result-set as rows in the destination host. Hope this helps. Cheers, Chandrashekar. -- http://www.chandrashekar.info/ http://www.slashprog.com/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] need a web mail client with pop3 support
On Thu, Feb 10, 2011 at 7:26 PM, steve st...@lonetwin.net wrote: Horde supports pop3: http://www.horde.org/webmail/ Thanks to everyone for their suggestions. I found www.mail2web.com which does what I need, and best part is that I don't have to install anything. Of course it has security caveats - I would never use my password on a 3rd party website. But my users are okay with it, and it get's the job done quickly. Thanks again for the suggestions. - Raja ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
On Thu, Feb 10, 2011 at 12:14 PM, Kenneth Gonsalves law...@thenilgiris.com wrote: I have been trying to learn javascript for the past 7 years - I seem to have some block. Just not happening. However the good news is that I seem to be getting on ok with C - feels very primitive, but the good thing is the internet which explains all the errors and warnings. Last three times I tried, internet had not reached India. Grab yourself a copy of The Practice of Programming http://tpop.awl.com/ Regardless of the programming language, it offers exceptional advise on good programming techniques. Writing Solid Code by Steve Maguire, Microsoft Press, is another excellent book to improve coding skills. Especially for C programmers. - Raja ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] Connecting two virtual OSs in same machine
Hi, My host OS is: Ubuntu 10.10. One of my virtual OS is: Ubuntu 9.04 and another one is: Ubuntu 10.04. All of these virtualisation has been completed with Virtualbox. Now, I need to replicate those two servers, one server is running in Ubuntu 9.04 and another one is running in Ubuntu 10.04. Is it possible? If yes, can you please provide me some help? -- Best, Zico ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On 02/10/2011 08:25 AM, Kenneth Gonsalves wrote: I have read the citation you have given - 6 times so far. There is nothing about license there - the citation talks of what you call governance - governance is bad and is the root of the problem. You misunderstood the purpose of the reference. You said NetBSD was alive and kicking. I pointed out that it was facing problems. The problems that were talked about in the mailing list weren't due to licensing but as I already indicated, you can get more information by talking to the developers directly and get to know the impact of the licensing in their development since there isn't any readily available reference for that. That is what I meant by doing your own research. Rahul ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On 02/10/2011 05:07 PM, Kenneth Gonsalves wrote: [ The different modes of development have already well established names. Look up Open Core, centralized copyright etc) note 1: Change of license is only possible if all the contributors agree to the change. Even if one disagrees, his work has to be removed before the license is changed. Which means that once the number of contributors reaches a critical mass, change of license is impossible. Not really true. Number of contributors is irrelevant. What is important is diversity of copyright holders or the specific permissions provided by a contributions license agreement if one exists. MySQL or Openoffice.org or most of the FSF/GNU projects has a single copyright holder and that entity can change the license anytime they want to. Also not all contributions are worthy of copyright. note 2: Although software cannot be stolen or made proprietary (only a copy can be stolen or made proprietary), the owner of the copyright can sell the copyright (as opposed to selling a copy). But if the number of developers has reached a critical mass, selling the copyright is also impossible. Copyright laws have several major differences depending on which part of the world we are talking about. In some places, public domain is not a legally recognized concept for instance. Rahul ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On 02/10/2011 05:07 PM, Kenneth Gonsalves wrote: 2. Company mode (free) - where the project is mainly run by a company and the said company does not have any proprietary products based on the project in question. Usually these companies are able to attract large number of developers because the developers know that the open source version they are working on is the same version that the company is working on. Companies almost invariably choose the GPL as suits are scared that some one may 'steal' their code. Any way a prime example of this type is Red hat. I have yet to see any evidence that organizations prefer GPL for control or they prefer GPL at all and in any case, Red Hat as a example of that is incorrect.Take Red Hat Enterprise Linux or Fedora and you will find that majority of packages have code that is developed outside of Red Hat and Red Hat serves as a integration point. It is clear according to several surveys that majority of FOSS developers who are hobbyists prefer GPL and not merely organizations and the motivations are described for those who bothered to look as well . Also when Red Hat does development of a new project, the license of the project is chosen on a case by case basis.I can give you examples of various licenses that Red Hat has chosen for new projects. a) Libvirt, LGPL b) FreeIPA , GPLv3, c) Deltacloud, Apache, D) Red Hat directory server, GPLv2 + exceptions, E) LibXML2, MIT. I am sure there are others. There is the curious case of PHP where a company has 'downgraded' it's license from GPL to a BSD style license. Wonder why ;-) Sort of knocks the apparent logic of the wine license change into a hat. Not really. A license change is not a downgrade or a upgrade. That concept has no legal meaning. Also if anything it knocks down the idea the organizations prefer GPL. The motivations will have to be evaluated based on the project in question Rahul ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] Speak up for every child's right to education.
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[Ilugc] Speak up for every child's right to education.
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Re: [Ilugc] Connecting two virtual OSs in same machine
On Fri, Feb 11, 2011 at 12:50 AM, Zico mailz...@gmail.com wrote: Hi, My host OS is: Ubuntu 10.10. One of my virtual OS is: Ubuntu 9.04 and another one is: Ubuntu 10.04. All of these virtualisation has been completed with Virtualbox. Now, I need to replicate those two servers, one server is running in Ubuntu 9.04 and another one is running in Ubuntu 10.04. Is it possible? If yes, can you please provide me some help? I do ALL my work with qemu. Every qemu instance is a separate OS! Yes. It is amazing. Even low end atom PCs that are available for 2900 rupees in Richie street supports this. Read my article: http://aplawrence.com/Girish/qemu.html Just start qemu like this: $ qemu -hda ubuntu1010.bin You should install ubuntu 10.10 on to a filestore. You install like this: $ qemu -hda ubuntu1010.bin -cdrom path-tocdrom-ubuntu To create a hard disk execute this command: $ qemu-img create ubuntu1010.bin 10G Repeat this whenever you want to install new OSes. -Girish -- Gayatri Hitech http://gayatri-hitech.com gir...@gayatri-hitech.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] learning a new language
On Thu, 2011-02-10 at 18:50 +0530, Chandrashekar Babu wrote: On 10/02/11 12:14 PM, Kenneth Gonsalves wrote: However the good news is that I seem to be getting on ok with C - feels very primitive, but the good thing is the internet which explains all the errors and warnings. Last three times I tried, internet had not reached India. You should have started with the book The C Programming Language by Brian Kernighan and Dennis Ritchie (2nd Edition). yes sir - right away. I have several copies of it. -- regards KG http://lawgon.livejournal.com Coimbatore LUG rox http://ilugcbe.techstud.org/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] need a web mail client with pop3 support
On Thu, 2011-02-10 at 19:26 +0530, steve wrote: Any recommendations are for a POP3 web mail client are very welcome. Thanks! Horde supports pop3: http://www.horde.org/webmail/ However, I personally have used it only in an IMAP setup so do not know how good/easy/painless it is to setup and use for POP3 how about the grand daddy of all - good old openwebmail? -- regards KG http://lawgon.livejournal.com Coimbatore LUG rox http://ilugcbe.techstud.org/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] need a web mail client with pop3 support
On Thu, 2011-02-10 at 20:59 +0530, Girish Venkatachalam wrote: There is nothing mutt does not support. except perhaps for the fact that it is not a web mail client? Please try to contribute to the battle against global warming by not top posting. -- regards KG http://lawgon.livejournal.com Coimbatore LUG rox http://ilugcbe.techstud.org/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On Fri, 2011-02-11 at 02:57 +0530, Rahul Sundaram wrote: On 02/10/2011 08:25 AM, Kenneth Gonsalves wrote: I have read the citation you have given - 6 times so far. There is nothing about license there - the citation talks of what you call governance - governance is bad and is the root of the problem. You misunderstood the purpose of the reference. You said NetBSD was alive and kicking. I pointed out that it was facing problems. The problems that were talked about in the mailing list weren't due to licensing but as I already indicated, you can get more information by talking to the developers directly and get to know the impact of the licensing in their development since there isn't any readily available reference for that. That is what I meant by doing your own research. unfortunately I do not move in such exalted circles - so why do you not tell us what the developers told you about how licensing impacted NetBSD? -- regards KG http://lawgon.livejournal.com Coimbatore LUG rox http://ilugcbe.techstud.org/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On Fri, 2011-02-11 at 03:03 +0530, Rahul Sundaram wrote: [ The different modes of development have already well established names. Look up Open Core, centralized copyright etc) these are fruits of my independent research and observations note 1: Change of license is only possible if all the contributors agree to the change. Even if one disagrees, his work has to be removed before the license is changed. Which means that once the number of contributors reaches a critical mass, change of license is impossible. Not really true. Number of contributors is irrelevant. What is important is diversity of copyright holders or the specific permissions provided by a contributions license agreement if one exists. MySQL or Openoffice.org or most of the FSF/GNU projects has a single copyright holder and that entity can change the license anytime they want to. this is what I said. Also not all contributions are worthy of copyright. note 2: Although software cannot be stolen or made proprietary (only a copy can be stolen or made proprietary), the owner of the copyright can sell the copyright (as opposed to selling a copy). But if the number of developers has reached a critical mass, selling the copyright is also impossible. Copyright laws have several major differences depending on which part of the world we are talking about. India In some places, public domain is not a legally recognized concept for instance. I know some one floated an idea that 'public domain' is not a legally recognised concept in the US - but I doubt it has any validity. Anyway in India it is not only recognised, but codified. btw, what has this got to do with the discussion? -- regards KG http://lawgon.livejournal.com Coimbatore LUG rox http://ilugcbe.techstud.org/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On 02/11/2011 08:20 AM, Kenneth Gonsalves wrote: unfortunately I do not move in such exalted circles - so why do you not tell us what the developers told you about how licensing impacted NetBSD? I have already answered that in a previous mail where I gave the citation. I rather not go in a circle. So this will be my last mail on this example. Rahul ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On 02/11/2011 08:24 AM, Kenneth Gonsalves wrote: I know some one floated an idea that 'public domain' is not a legally recognised concept in the US - but I doubt it has any validity. I wasn't talking about U.S. Anyway in India it is not only recognised, but codified. btw, what has this got to do with the discussion? That was one example of how copyright differs. Another example is that it is not possible to really sell aka assign copyright to another entity at all in some regions. So such differences must be taken into account when discussing the impact of various models. Rahul ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On Fri, 2011-02-11 at 08:28 +0530, Rahul Sundaram wrote: Another example is that it is not possible to really sell aka assign copyright to another entity at all in some regions. which regions? -- regards KG http://lawgon.livejournal.com Coimbatore LUG rox http://ilugcbe.techstud.org/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Understanding Free and Open source code licenses
On 02/11/2011 08:41 AM, Kenneth Gonsalves wrote: On Fri, 2011-02-11 at 08:28 +0530, Rahul Sundaram wrote: Another example is that it is not possible to really sell aka assign copyright to another entity at all in some regions. which regions? Look up special author rights in Europe for instance. In other places, copyright itself can be assigned or sold but not moral rights . IIRC, that includes India. Rahul ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Connecting two virtual OSs in same machine
On Fri, Feb 11, 2011 at 6:43 AM, Girish Venkatachalam girishvenkatacha...@gmail.com wrote: I do ALL my work with qemu. Every qemu instance is a separate OS! Yes. It is amazing. Even low end atom PCs that are available for 2900 rupees in Richie street supports this. Read my article: http://aplawrence.com/Girish/qemu.html Just start qemu like this: $ qemu -hda ubuntu1010.bin [ ... ] Thanks a lot Girish for your nice article. But, I am afraid that, I was not able to make the actual thing clear to you, I guess. Host: Ubuntu 10.10 Guest 1: Ubuntu 9.04 Guest 2: Ubuntu 10.04 Job: Must have to run two guests at a time. Because, two LDAP of two guests need to replicate. Now, If I try to get the first Guest ( hostname: mohib-laptop ) from second Guest ( hostname: zaman-laptop ), it is not getting! Do I need to change IP address of those both Guests? Or are there anything which will make it possible? -- Best, Zico ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] make tutorial
Mr. Girish, Mohan Shakti Kannan, Thanks for this excellent post. A lot of work - for which - everyone will appreciate this, particularly newbies. with warm regards s.sivakumar mumbai ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] make tutorial
On Thu, Feb 10, 2011 at 8:17 PM, Shakthi Kannan shakthim...@gmail.com wrote: Hi, --- On Fri, Jun 18, 2010 at 4:59 PM, Girish Venkatachalam girishvenkatacha...@gmail.com wrote: | This mail is an attempt to teach makefiles in UNIX. | ... | As you can see it is very complicated, complex and needlessly boring. \-- Made a presentation on GNU Make: http://www.shakthimaan.com/downloads.html#dum-ka-biryani-make-for-each-other the biryani is superb and very tasty... -- Regards, Sathishkumar D ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Connecting two virtual OSs in same machine
On Fri, Feb 11, 2011 at 9:42 AM, Zico mailz...@gmail.com wrote: Thanks a lot Girish for your nice article. But, I am afraid that, I was not able to make the actual thing clear to you, I guess. Host: Ubuntu 10.10 Guest 1: Ubuntu 9.04 Guest 2: Ubuntu 10.04 Job: Must have to run two guests at a time. Because, two LDAP of two guests need to replicate. Now, If I try to get the first Guest ( hostname: mohib-laptop ) from second Guest ( hostname: zaman-laptop ), it is not getting! Do I need to change IP address of those both Guests? Or are there anything which will make it possible? Your question is clear Zico. You have to do full mode networking with qemu for this. Start qemu with # qemu -net nic -net tap foo.bin command line. You can run one host Ubuntu and two guests. This is not a direct answer but you can figure out the rest on your own. Best of luck. -Girish -- Gayatri Hitech http://gayatri-hitech.com gir...@gayatri-hitech.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] Connecting two virtual OSs in same machine
Hi, On Fri, Feb 11, 2011 at 9:42 AM, Zico mailz...@gmail.com wrote: Job: Must have to run two guests at a time. Because, two LDAP of two guests need to replicate. Now, If I try to get the first Guest ( hostname: mohib-laptop ) from second Guest ( hostname: zaman-laptop ), it is not getting! Virtualbox provides Internal Networking so that guests on the same host can connect to each other, provided they have the same network ID. Look at http://www.virtualbox.org/manual/ch06.html#network_internal. -- Thanks and Regards, Hrishikesh Murali ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
