How to configure ssh login with out password in Mac OS X and Linux

When ever we want to connect to remote server (or) host using SSH we will provide the host name after it prompt for password. If we follow the below step it won't ask for the password on each time.

STEP 1 - Generating the key pair

Create your set of keys:
Start up the Terminal application and run:

ssh-keygen -t rsa -b 4096

STEP2 - Copy Generated public to our remote server

Copy the newly created public key to the SSH server(s) you need to auto login into by using your favourite transport method.

Please be careful not to overwrite ~/.ssh/authorized_keys if it already exist! This is how I personally copy the key, might not be your preferred method:

If authorized_keys exist:
cat ~/.ssh/id_rsa.pub | ssh username@example.com "cat - >> ~/.ssh/authorized_keys"
If authorized_keys does not exist:
scp ~/.ssh/id_rsa.pub username@example.com:~/.ssh/authorized_keys

Check your file permissions. A lot of different *nix system is picky when it comes to permissons. Setting your .ssh directory to 0700 and .ssh/authorized_keys to 0600.

  chmod 0700 ~/.ssh
  chmod 0600 ~/.ssh/authorized_keys

Read the data from server using Backbone js collection fetch data

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