Linuxers March 2011

linuxers@mm.ilug-bom.org.in

61 participants
55 discussions

File named with 2 variables
by Rony Bill 24 Mar '11

24 Mar '11

Hello, I am creating / appending files using a variable as the input name. Eg. $USER.jpeg makes a file called rony.jpeg . I want to add 2 variables to the file name instead of one and make $USER-$DATE.jpeg (rony-23/03/11.jpeg). What is the correct syntax for it as I keep getting errors in the mv as well as rename command. Tried $USER_$DATE or $USER.$DATE etc but no result. Did look up google but it has complex sed scripts. -- As a proper list etiquette..... Please trim your replies. Avoid cross posting to other lists. Members do not want to waste time answering same queries that may have been answered on other lists. Replies from other lists, to cross posted mails are not available to our members. Post your replies below the relevant original text, leaving a line space. Do not re-use old messages to write new ones. For new messages, create a new message.Regards, Rony.

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Fwd: [Ilugc] Need help in releasing an Open source Device/App
by Hameed 23 Mar '11

23 Mar '11

> > On Wed, Mar 23, 2011 at 12:30 PM, Arun Venkataswamy <arun289(a)gmail.com > >wrote: > > I have developed a local paging system based on arduino and 2.4Gz radio > modules. This is aimed at schools for the hearing impaired. It is very low > cost and am releasing it in open source, both hardware and software. I > don't > intend to manufacture it either, but will provide all tech support. Anybody > is free to do so. > > I need help in releasing the project open source. Take care of the entire > eco system. Of course, anybody and everybody involved will become part of > the project :) > Hi Friends Here's a wonderful initiative from Arun - a very low-cost product for the hearing impaired. The best part is that the hardware and software are going to be made open source and he needs inputs on the same. Anyone willing to manufacture the product on a large scale are also invited. Regards Hameed ---------- Forwarded message ---------- From: Arun Venkataswamy <arun289(a)gmail.com> Date: 23 March 2011 15:33 Subject: Re: [Ilugc] Need help in releasing an Open source Device/App To: Linux User Group - Chennai <ilugc(a)ae.iitm.ac.in> On Wed, Mar 23, 2011 at 12:30 PM, Arun Venkataswamy <arun289(a)gmail.com >wrote: > Some time ago, I had mentioned on this list that I am making an open source > device for the hearing impaired. It's no serious high tech stuff, but > something I think will make the quality of life of children with hearing > disabilities a little better. Just a small summary of the device- > > OK, I realise the message was too long :) So here is a gist. If interested, read the whole mail... I have developed a local paging system based on arduino and 2.4Gz radio modules. This is aimed at schools for the hearing impaired. It is very low cost and am releasing it in open source, both hardware and software. I don't intend to manufacture it either, but will provide all tech support. Anybody is free to do so. I need help in releasing the project open source. Take care of the entire eco system. Of course, anybody and everybody involved will become part of the project :) Regards, Arun _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc

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Re: [ILUG-BOM] wget and rapidshare free download
by Amit Dhakulkar 23 Mar '11

23 Mar '11

You can try tucan or jdownloader. D -- My cell number is a prime number, is yours?

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how to bypass ISP blocking NAT?
by Ratnakar Koli 23 Mar '11

23 Mar '11

Hi friends, I have a internet connection from Nivyah Broadband, Mumbai. I have been using it for long now, and sharing it using a netgear router. Unfortunately, around 1 month back, I found that I am not able to use the internet. I did a traceroute, it showed no problem, but I was still not able to browse. I tried using other service provider on the same settings i.e. changing the access-concentrator details etc. it works fine. Switched back to Nivyah and again the same result. I am not able to browse or in otherwords not able to use internet. Please can somebody guide me, how can I bypass the ISP blocking me from using internet from a router? Also, I would like to know, how would an ISP come to know that I am sharing my net connection. I tried googling it, but was not able to find any satisfying document on same, on my own. If there is anything on same I would definitely like to read on it. Please assist. Thank you Ratnakar Koli

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wget and rapidshare free download
by sanalmadatheth＠gmail.com 23 Mar '11

23 Mar '11

Dear All, Is it possible to download from sites like Rapidshare (not premium, but free and slow download) with the commandline tool wget ? There are packages like slimrat , fatrat and tucan in debian squeeze but not working with rapidshare free download. Slimrat is a commandline tool and it failed when I tried $ slimrat --list rapidshare_links.txt --to destination_directory and the error shown was : download failed while constructing (no appropriate plugin found) Fatrat and tucan having gui also didn't work with rapidshare. Can anybody help.Thanks in advance sanal madatheth HSA Malayalam vhss irimpanam Tripunithura -- പറയാതെ പരിഭവം നീയൊന്നു മുടി കോതി- ക്കഴിയുമ്പൊഴായുസ്സു തീരും പറയാതെ പരിഭവം ഞാനൊന്നു നെടുവീര്‍പ്പിട്ടു- കഴിയുമ്പോള്‍ ലോകവും തീരും..........

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[OT] Initial Experiences in 3G
by Rony 23 Mar '11

23 Mar '11

Hello, After Vodafone announced the commencement of their 3G services that can give top speeds of 21 Mbps, it was tried out on a Nokia N82 handset which has UMTS 2100 support and download speed upto 3 Mbps. The speed of surfing is a wee bit faster than EDGE but not very fast and a mobile speed test showed a download speed of 281 Kbps, a far cry from the original claims. What have been other peoples' 3G experiences? -- As a proper list etiquette... Please trim your replies. Post your replies below the relevant original text, leaving a line space. Do not re-use old messages to write new ones. Regards, Rony.

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Re: [ILUG-BOM] [LIH] how to bypass ISP blocking NAT?
by Arun Khan 22 Mar '11

22 Mar '11

On Tue, Mar 22, 2011 at 8:41 AM, Suresh Ramasubramanian <linux(a)frodo.hserus.net> wrote: > They're filtering based on your NIC's MAC address. > Most NAT devices have the feature to program the MAC address on the WAN port. @OP -- it is not clear whether you are using the ISP's box or your own box to connect to the ISP on the WAN port. Have you called the tech. support to find out why you are not allowed access to the Internet. If it is a MAC address issue then look for a solution that allows MAC address settings on the WAN port. -- Arun Khan

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Fwd: [OT] Initial Experiences in 3G
by Rony Bill 22 Mar '11

22 Mar '11

---------- Forwarded message ---------- From: Rony Bill <gnulinuxist(a)gmail.com> Date: Tue, Mar 22, 2011 at 2:49 PM Subject: Re: [ILUG-BOM] [OT] Initial Experiences in 3G To: Binand Sethumadhavan <binand(a)gmail.com> On Tue, Mar 22, 2011 at 1:38 PM, Binand Sethumadhavan <binand(a)gmail.com>wrote: > 2011/3/22 Rony <gnulinuxist(a)gmail.com>: > > I do have some doubts about these speed test softwares. > > Rony, Rony... a few days back you said: > > "Guys, please do a speed test to get actual figures." > > So which is it? Do you trust speed tests or do you not? > > I would like to trust them but my last experience was weird. Right now, my EDGE only Samsung Star phone gives a speed result of 1509 Kbps on mobilespeedtest.com On dslreports.com, I get a message to choose a larger file, so I choose 1 MB abd it says "Unstable/too fast a result (1.427s) pleasechoose alarger file". 1 MB is their largest file. On ISPgeeks.com, my test result is 4 Mbps. Wow! Before doing the tests, I had cleared by browser cache. Binand, could you check your email settings. Everytime I reply to a list message of yours, it goes to your email id only. -- As a proper list etiquette..... Please trim your replies. Avoid cross posting to other lists. Members do not want to waste time answering same queries that may have been answered on other lists. Replies from other lists, to cross posted mails are not available to our members. Post your replies below the relevant original text, leaving a line space. Do not re-use old messages to write new ones. For new messages, create a new message.Regards, Rony.

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Calculating Time Difference in Bash
by Rony 22 Mar '11

22 Mar '11

Hello, I am trying to set up an el-cheapo attendance system that only calculates how late the person has come with reference to a fixed office time. I don't want to use any database+server thing as that is complex and users are less than 20. I am thinking of a simple approach with cheap and simple biometrics to prevent impersonation. A cheap web cam will click light thumbnails and a timestamp will be generated. Every month a file will be generated after which the photos can be erased automatically. The result file will be a .csv one that can be imported in any Office application. I am stuck at the point of calculating time difference. There doesn't seem to be a direct command that will calculate time difference in HH:MM format. This link mentions a work around http://www.cyberciti.biz/faq/shell-script-to-get-the-time-difference/ but it first converts time into %s which is the number of seconds since 1970. However every day for the fixed opening time, say 10:00 this figure is not constant. One way out is that every day the %s figure is generated at exactly 10:00 and this is then 'diff'ed with the user's attendance time in %s. This is then divided by 60. Is there a simpler bash command that I may have overlooked that simply takes in 10:17 and 10:00 and says 00:17? -- As a proper list etiquette..... Please trim your replies. Avoid cross posting to other lists. Members do not want to waste time answering same queries that may have been answered on other lists. Replies from other lists, to cross posted mails are not available to our members. Post your replies below the relevant original text, leaving a line space. Do not re-use old messages to write new ones. For new messages, create a new message. Regards, Rony.

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Kohacon Registration page - Co-presenter anybody?
by Rajagopal Swaminathan 22 Mar '11

22 Mar '11

Greetings, Please note that there are participants from at least 14 countries apart from India that too within few weeks of announcement. http://kohacon11.vpmthane.org/ocs/index.php/k/k11/schedConf/registration Surely the students and practiioners too will gain a lot. I am planning to experiment and present CentOS as a robust High Availability Platform for Applications like KOHA/DRUPAL etc. I don't know what I will Land up with though over the course of time. Some of the question I am looking at in a practical viewpoint of an Application and IT infrastructure Architect are: 1. We need to look at lifetime of the application like KOHA - perhaps 10 year in the timeline of a library? 2. Is the quick changing Fedora/Ubuntu stand the trial? 3. What is the interaction between DSpace etc? 4. Can they both be running in HA peacefully? 5. etc. If so please reply on this list. I must declare that I am not going to invest INR(Money) in this. I can't afford HA hardware at this point of time. Would anybody like to join me in presenting a paper or experimenting? Perhaps two different department can jointly decide to own one server each and bring it together for HA demo teaching purposes and then use it later individually or using the HA setup for themselves and to educate next gen of the students. Regards, Rajagopal

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Linuxers March 2011