With Google launching their chrome book is significant as it reflects a substantial shift in the world of computing. For the first time ever, the application platform isn’t the operating system, nor is it adobe air, .net or java, it’s the browser. The browser once, a simple tool for fetching and rendering content is now the most important application platform in the world. Ultimately the reason we are converging on the browser being the platform is because java failed.
Every self respecting linux, mac os X or *nix user should have a solid handle on managing jobs in unix. The following will explain how to run tasks in the background, bring tasks to the foreground, background already running tasks and keeping a task running while logged out. Run a task in the background All you need to to is follow a command with the ‘&’ character. Pretty simple. What this does is start the command and background it.
du is the *nix command for disk usage”). It tells you how much space everything in the given directory is taking up. GNU du introduced a handy option -h making it human readable, or showing sizes using K, M, G rather than bytes. Unfortunately this makes it not sortable numerically. Here’s how to sort du by size and keep it as human readable. Insert the following function into your .profile or .bash_profile file.
Luckily it’s 2009 and there have been a bunch of successful websites that have had to deal with large scalability challenges. Many have been kind enough to share their knowledge with the world. Here is a list of the best books, articles, presentations and practices from the likes of Twitter, Facebook, Flickr and more. Books Building Scalable Web Sites Building, scaling, and optimizing the next generation of web applications by Cal Henderson Cal of Flickr fame has written the definitive resource on scaling web apps.
One of the worst experiences you can have as a computer operator is to realize you (or something else) just did something and wiped out your files. The purpose of this article is to show you how to automatically backup your files often and automatically. I use this setup to backup my documents every hour (I save more often then that). This gives me hourly versions of all my files I am working on.