Linux-Shell Script to Move to specific folder using "cd" command

Shell scripts are run inside a subshell, and each subshell has its own concept of what the current directory is. The cd succeeds, but as soon as the subshell exits, you're back in the interactive shell and nothing ever changed there.

To Resolve that we use bash command. 

#!/bin/sh

#!/bin/bash

cd "/opt/azw/webapp/src/";

bash

To pull specific directory with git

To pull specific folder from git repository or git repo

mkdir directoryName
cd directoryName
git init
git remote add origin -f <>
git config core.sparsecheckout true
echo / >> .git/info/sparse-checkout
git pull origin master

Python Cheat Sheet

Python Cheat Sheet

Connect to Microsoft SQL Server Using PHP

Connect to Microsoft SQL Server Using PHP

Below Code will connect to the Microsoft Sql Server using php script.

Authenticating with OAuth 2.0 For LinkedIn Api Access using PHP

Authenticating with OAuth 2.0 For LinkedIn Api Access using PHP

LinkedIn Oauth 2.0 PHP Access

Follow these steps to enable your application to make
authenticated API calls to LinkedIn using OAuth 2.0:

Step 1: Configuring your LinkedIn application.

Create application in linkedin Developers Panel Link.

After Clicking on Create App. Fill the form information.

Once you save your configuration, your application will be assigned a unique "Client ID"   and "Client Secret" value.


Step2: Using the below PHP code to get the LinkedIn access Token to access there apis

Reading Excel Spreadsheets with Python

Excel & Python

Reading an Excel Spreadsheet

In this section, we will look at a function that demonstrates reads the Excel sheet data and convert that data into XML file.

We Used the following libraries to do the above functionality

• Openpyxl : Openpyxl is a Python library for reading and writing Excel 2010 xlsx/xlsm/xltx/xltm files.
• xml.etree.ElementTree: To create the xml tree elements
• datetime: to conver the date time column values to specified format 

PHP popen() Function

popen in php

Parallel processing in PHP Using popen() Function

Since PHP does not offer native threads, we have to get creative to do parallel processing.

There will be scenarios where PHP takes much time to complete a task. Example scenarios are attaching a large file and and sending an email, or processing a large video file 

to make thumbnails. Imagine  a user having to wait until PHP finishes the all that job.

All the heavy work might being going on at the server. 

But, if a user doesn't see any activity on a page for some time, they might think that the page is not working and leave the page.  In such cases, we can make use of a background process.

Example of popen as a Async processing

Make popen as synchronous

The below code will wait until child process completed.

echo date("h:i:s");echo "\n";
$ph = popen('php ' . $commandName , 'r') or die($php_errormsg);
while (! feof($ph)) {
$s = fgets($ph) or die($php_errormsg);
}
pclose($ph) or die($php_errormsg);
echo date("h:i:s");echo "\n";