RegEx for Parsing nested XML

<([^\s\/>]+)\s*?(?:Unit=\"([^"]+)\"\s*?)?>([^<]+)<\/

http://www.javacodegeeks.com/downloads/?dlp=2016/09/GWT-Programming-Cookbook.pdf&utm_source=javacodegeeks&utm_medium=all&utm_campaign=newsletter_signup&utm_content=GWT-Programming-Cookbook

https://www.techonthenet.com/oracle/functions/index_alpha.php

Grep Commands

https://www.cyberciti.biz/faq/howto-use-grep-command-in-linux-unix/

grep -Eo '[0-9]{1,19}' integration.txt >number.txt
Command to grep NC id which is 19 digit from a long test file integration.txt and save it to number.txt

How to compare two columns to find duplicates in Excel

Select the Conditional Formatting button on the Home tab

Select the optionNew Rule from the buttonConditional Formatting drop-down list.

Select ‘Use a formula to determine which cells to format‘ as a rule in the New Formatting Rulewindow.

=countif($B:$B, $A1)

Click on the buttonFormat and specify the format you want to set.

https://resources.jetbrains.com/assets/products/intellij-idea/IntelliJIDEA_ReferenceCard.pdf

http://www.javacodegeeks.com/downloads/?dlp=2016/09/GWT-Programming-Cookbook.pdf&utm_source=javacodegeeks&utm_medium=all&utm_campaign=newsletter_signup&utm_content=GWT-Programming-Cookbook

How do I check if a file exists in Java?

There are multiple ways to achieve this.

1. In case of just for existence. It could be file or a directory.

   new File("/path/to/file").exists();

2. Check for file

   File f = new File("/path/to/file"); 
     if(f.exists() && f.isFile()) {}

3. Check for Directory.

   File f = new File("/path/to/file"); 
     if(f.exists() && f.isDirectory()) {}

4. Java 7 way.

   Path path = Paths.get("/path/to/file");
   Files.exists(path)  // Existence 
   Files.isDirectory(path)  // is Directory
   Files.isRegularFile(path)  // Regular file 
   Files.isSymbolicLink(path)  // Symbolic Link