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Quick HOWTO : Linux Networking

A fantastic document on Linux networking is available here: http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch03_:_Linux_Networking

Best 11 questions Gallup scientists have found to ask customers anywhere in the world

Source: http://gmj.gallup.com/content/149168/Secure-Jobs.aspx?utm_source=email&utm_medium=112011&utm_content=morelink&utm_campaign=newsletter#2

Leaders have yet to learn that relationships trump price in almost all business circumstances, from hair salons to high-tech consulting. He who most deeply understands the customer's needs tends to win and always gets the highest margins. That's why talent and relationships can almost always beat low price -- they inspire customer engagement. To measure customer engagement, these are the best 11 questions Gallup scientists have found to ask customers anywhere in the world:

CE1. Taking into account all the products and services you receive from them, how satisfied are you with (Company) overall?

CE2. How likely are you to continue to do business with (Company)?

CE3. How likely are you to recommend (Company) to a friend or associate?

CE4. (Company) is a name I can always trust.

CE5. (Company) always delivers on what they promise.

CE6. (Company) always treats me fairly.

CE7. If a problem arises, I can always count on (Company) to reach a fair and satisfactory resolution.

CE8. I feel proud to be (a/an) (Company) customer.

CE9. (Company) always treats me with respect.

CE10. (Company) is the perfect company/product for people like me.

CE11. I can't imagine a world without (Company).

I think this is indeed a very good compilation!

Quotable Quotes on Money

Sep 29, 2012 - 5 minute wrapup
"Yearly figures, it should be noted, are neither to be ignored nor viewed as all-important. The pace of the earth's movement around the sun is not synchronized with the time required for either investment ideas or operating decisions to bear fruit." - Warren Buffett's 2010 letter to shareholders of Berkshire Hathaway

October 19, 2011 - 5 minute wrapup - 

"It takes character to sit there with all that cash and do nothing. I didn't get to where I am by going after mediocre opportunities." - Charles Munger 

20-Oct-2011 - 5 minute wrapup - 

"As I grow older, I pay less attention to what men say. I just watch what they do." - Andrew Carnegie 

29-Oct-2011 - 5 minute wrapup  - 

"Here's one truth that perhaps your typical investment counselor would disagree with: if you're comfortably rich and someone else is getting richer faster than you by, for example, investing in risky stocks, so what?! Someone will always be getting richer faster than you. This is not a tragedy." - Charlie Munger

29-Oct-2011 - Market Musings (M2) - 

"As I grow older, I pay less attention to what men say. I just watch what they do." - Andrew Carnegie

5-Nov-2011 - 5 minute wrapup - 

"If past history was all there was to the game, the richest people would be librarians." - Warren Buffett 

30-Apr-2011 5 minute wrapup - 

"Investing in stocks is an art, not a science, and people who've been trained to rigidly quantify everything have a big disadvantage. If stock picking could be quantified, you could rent time on the nearest Cray computer and make a fortune. But it doesn't work that way. All the math you need in the stock market you get in the fourth grade." - Peter Lynch

A simple counter/timer code in Java

It is a very common requirement to measure time taken by a particular method/function or block of code. The following simple timer can come handy:

long startTime = System.currentTimeMillis();
// Code block or method/function to time.
long endTime = System.currentTimeMillis();
System.out.println("Time taken: " + (endTime - startTime) + " milliseconds");

The accuracy of results can be improved by using System.nanoTime().

How to execute HTTP command in Linux on command line

curl is a command line utility to execute commands in protocols like HTTP, FTP, etc on Linux.

Example: curl -k --user admin@abc.xyz.com:password "https://abc.xyz.com:8080/api/data"

where:

-k : disable SSL (when server doesn't enforce SSL authentication)
--user: authentication credentials of format "username:password"

How to print time taken in milli seconds by a command on UNIX

Just replace "" in one line script below with your command and it will output the time taken by the command in milli seconds

You can also manipulate the dividing factor (1000000 in command below) to get output with varying degrees of precision

START=$(date +%s%N); ; END=$(date +%s%N); DIFF=$(( $END - $START )); echo "It took $(( $DIFF / 1000000)) milli seconds"

How to type in "Marathi" (devanagari) in Windows?

There are various ways of doing it and I have listed them below:

Option 1: Unicode (using transliteration software/websites)

You will have to type in Unicode format (more details if interested: http://en.wikipedia.org/wiki/Unicode).  Unicode being an international standard makes it usable without requiring to install any fonts. All browsers support Unicode, which may at most need to be enabled. Currently Gmail offers typing and reading mails in Marathi this way. Other way is to use Google transliteration that is available here: http://www.google.com/transliterate/indic/MARATHI. The only disadvantage of this is that you need an active internet connection.

Option 2: IME (Input method editor)

Google also gives an interesting tool called Google IMEI (http://www.google.com/ime/transliteration/) which allows you to type Marathi characters represented in Unicode in any application on Windows (notepad, directory names, file names, practically anything...).  How to install and use Google IMEI is given here: http://www.youtube.com/watch?v=XRy3_Gmt5ak&feature=mh_lolz&list=FL_5qtqa6_rBw. Installation of it requires interenet connection. However, the biggest advantage is that once installed it can be used without active internet connection. If you want to install on a PC that does not have internet connection, please check this link: http://shashigokhale.blogspot.com/2011/09/how-to-install-google-ime-without.html

Option 3: Font files

You will have to install the specific font on the computer. This basically means copying the font file (typically of extension of ttf or fon) into C:\Windows\Fonts.

 

My choice: Option 2!

How to install Google IME without internet connection

This is a very common problem faced by Google IME users in India (where internet penetration is still growing). I found these links, where people have find various ways of getting the offline installer to solve the problem. The links are given below:

http://hi.fi.vc/2010/07/google-transliteration-ime-offline.html
http://www.trishtech.com/internet/google_transliteration_ime_offline_installer.php

So, go ahead and enjoy typing in your mother tongue.

10 calcuations for calculating worth of investments

Very good information about such 10 formulae is available at: http://specials.rediff.com/money/2008/jul/22slde01.htm

SIP returns calculator: http://www.indiainfoline.com/personalfinance/calculators/mutualfunds/systematic-investment-plan-returns

Numerous calculators: http://www.indiainfoline.com/personalfinance/calculators/

XML parsing

Below is a list of very helpful links that I found related to XML parsing.

How to convert Document to String (source:  http://www.theserverside.com/discussions/thread.tss?thread_id=26060)

import java.io.*;
import javax.xml.transform.*;
import javax.xml.transform.dom.*;
import javax.xml.transform.stream.*;

//method to convert Document to String
public String getStringFromDocument(Document doc)
{
    try
    {
       DOMSource domSource = new DOMSource(doc);
       StringWriter writer = new StringWriter();
       StreamResult result = new StreamResult(writer);
       TransformerFactory tf = TransformerFactory.newInstance();
       Transformer transformer = tf.newTransformer();
       transformer.transform(domSource, result);
       return writer.toString();
    }
    catch(TransformerException ex)
    {
       ex.printStackTrace();
       return null;
    }
}

How To Pretty Print Xml With Java   (source: http://www.coderanch.com/how-to/java/HowToPrettyPrintXmlWithJava)

Examples of XML Transformer OutputKeys (source: http://www.javadocexamples.com/javax/xml/transform/javax.xml.transform.OutputKeys.html#STANDALONE)

How to change hostname in Linux

1. Edit file /etc/sysconfig/network using your favourite editor. For vi enter vi /etc/sysconfig/network
2. Look for HOSTNAME=xxxxxx
3. Change the xxxx to the name you wish to set for your computer. (ex: HOSTNAME=hula.com)
4. Save the file and restart the xinetd service. (ex: type service xinetd restart in your shell)

Reference: http://www.techiecorner.com/99/how-to-change-hostname-in-linux/

Recharge your prepaid mobile phone online

Service providers:
==============
Vodafone: http://www.vodafone.in/online_prepaid_recharge/online_recharge_mobile.aspx
BSNL: http://portal.bsnl.in/rc/aspxfiles/login.aspx


Banks:
======
HDFC Bank: http://www.hdfcbank.com/personal/payments/prepaid_refill/pre_refill.htm
ICICI: http://www.icicibank.com/Personal-Banking/onlineservice/online-services/PrepaidMobileRecharge/prepaid-mobile-recharge.html

Third party (I have personally not used any of them, but looks good)):
==========
http://www.rechargeitnow.com
http://www.onestoprecharge.com
http://rechargemobilephones.com/india/online-recharge-mobile/

Hope this information is helpful.

Mumbai suburban local train time table

is available here: http://www.go4mumbai.com/

Fixing Master Boot Record (MBR) in Windows XP without the recovery console (equivalent of fdisk /mbr on XP)

The solution to this problem is given here: http://eivind.dataweb.no/?p=13. In essence the solution is to use a utility named MBRFix available here: http://www.sysint.no/products/Download/tabid/536/language/nb-NO/Default.aspx

Howto for CPPUNIT

Good information about using CPPUNIT is available at:

http://blog.csdn.net/snowphy/archive/2004/10/22/146766.aspx
http://www.uow.edu.au/~nabg/222/Lectures/P3UnittestingforC++.pdf

An important point is to using macros with which you can specify custom message for describing the error. In the following example, use the second macro instead of the first and so on:

• CPPUNIT_ASSERT(condition)
  Assertions that a condition is true.
• CPPUNIT_ASSERT_MESSAGE(message, condition)
  Assertion with a user specified message.

I deleted Linux partition and now Windows XP does not boots

I am just getting a grub prompt. Tried to use Windows setup disk, but it went forward and gave blue screen. The following steps found at: http://www.linuxquestions.org/questions/linux-software-2/booting-windows-from-the-grub-prompt-275446 fixed the problem.

root (hd0,0)
makeactive
chainloader --force +1
boot