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Basics of Linux File System Heirarchy

In 1994, FHS(File System Hierarchy Standard) was proposed, it describes the directory structure of UNIX and UNIX-like systems(Linux). Before FHS was proposed, there had been UNIX-like operating systems which had their own standards. Today almost every UNIX-like systems notable Linux distros follow these guidelines.


Autocomplete with Django-Haystack and Elasticsearch with single letter querying.

Django's haystack provides autocomplete functionality. To do autocomplete effectively, the search backend(elasticsearch in this case) uses n-grams (essentially a small window passed over the string). Because this alters the way your data needs to be stored. We had two choices: NgramField and EdgeNgramField used as n-grams in search backend. The major drawback of the n-grams is that they take minimum of 3 letters in the search query.


Get tweets with Javascript

Due to change in twitter API, its been hard to get tweets from twitter to your site using javascript. We got new API version 1.1 and the old version 1 is not working any more, so we have to live with what ever 1.1 offers. This version of API supports widgets to keep in our sites, but thats not enough if we want to customize tweets using javascript to fit our sites look and functionality. We want json of the tweets, then we can do what ever we want with those.


How to create Periodic Tasks in Celery?

Celery provides asynchronous job queues, which allows you to run Python functions in the background. Celery is on the Python Package Index (PyPi), and can be easily installed with pip or easy_install and its dependencies.


Postgresql Installation and management basics.

PostgreSQL or simply postgres is the most advanced, SQL-compliant and open-source objective-RDBMS. In This Article, you will learn how to Install, Connect and Manage a postgres database.


FABRIC – LEARNING PART 2

Using Fabric, we can develop interactive script for ec2 region, ec2 flavour amazon web services. For this, you need aws account, security group, key pair, access key id, secret access key. Here we will explain about creating server, then do the operation with fabric like create ec2 instance.


Fabric - Learning part1

Using Fabric, we can configure Linux production server with uwsgi, nginx, vsftpd, mysql, mongodb, postfix, php, python tools, and other relevant pieces of software single-handedly . Using fabric, we can easiyt do perform operations on local, server like database backup, restore a backup etc.


Best Practices of Using Django Celery in Django Social Auth

Best Practices of Using Django Celery in Django Social Auth.


Advanced Querying in MongoDB

Advanced Queries of MongoDB: Inserting records to the database and retrieving data from database.
1. Wrapped Queries: Like, sort, limit, count.
2. Query Using Modifiers: set, increment, push,Set Elements in Array, AddToSet Modifier, each.


Imageview customization (circular image view)

In android designing we'll come across ImageView. An ImageView displays an arbitrary image, such as an icon. The ImageView class can load images from various sources (such as resources or content providers), takes care of computing its measurement from the image so that it can be used in any layout manager, and provides various display options such as scaling and tinting. it is recommended to customise it through bitmaps(BitMap in android) instead of reshaping the image manually.


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