Zip is the most common archiving format. It is avialable on all operative systems such as Linux, Windows and Mac. However, it does not offer the best level of compression as compared to tar.gz and tar.bz2. Tar is very common archiving format in Linux. Tar.gz is better than tar compression. And, tar.bz2 is the the … Read more
Here are some linux commands to change the permission of files and folders/directories. chmod is used change the file system mode / permission of files and folders. Change Particular File and Folder Permission This will give 775 permission to test directory which is insde /var/www directory chmod 775 /var/www/test This will give 664 permission to … Read more
Here are step-by-step commands about installing apache, php, mysql, and phpmyadmin on ubuntu. 1) Open Terminal – Press: CTRL + ALT + T 2) Install Apache – In terminal, type: sudo apt-get install apache2 – To test if Apache installation, Open browser and type: http://localhost – It should show text: It Works! 3) Install PHP … Read more
Here is PHP code to: 1) Read / Scan any directory 2) Read any file 3) Write to any file 1) Read or Scan directory Get all files and folders inside the directory. Three ways are shown below. a) Read/Scan directory using opendir() and readdir() function $dir = "/var/www/test"; $dh = opendir($dir); while (false !== … Read more
Here is a quick guide on calculating inverter and battery backup time. There are different capacity of inverters like 200VA, 250VA, 350VA, 400VA, 450VA, 500VA, 625VA, 1200VA, etc. The capacity of the inverter should be chosen based on how much watt of appliances you power at a time. How to convert from VA to Watts? … Read more
Here is the solution to “There are no free MBR slots on the disk” error while creating new partition on Windows 7. Scenario: I am using Windows 7 OS in my HP Pavilion Laptop. I have 3 drives (C, D, and E). When I see through Control Panel -> Administrative Tools -> Computer Management -> … Read more
Here are some ways (2 ways below) to show customer address information in registration page. When you fill up the address fields and signup then both your billing and shipping addresses are filled up. Here is how to enable address fields in signup page:- 1) First way [EASY] – Open template/customer/form/register.phtml – Just above this … Read more
Here is a quick tip on how meta tags – title, keywords and description work on Magento. Meta information are not visible directly to end users but they are read by search engine spiders (bots). Meta tags are very important parameters for Search Engine Optimization (SEO). In Magento, you can keep meta tags for Category, … Read more
This article shows how to get selected value from dropdown box when a button is clicked. Problem: – There are multiple forms in a page. – There is a dropdown select box in each form. – The option value of the select box is website URL. – There is a button type=button (not type=submit) in … Read more