In my interest to copy a file into a massive subfolder list in my local, I found this URL. Thought of sharing.

Few basic unix commands that any unix user "must" know. Also describes those commands in detail.

Sysads and programmers have widely used Expect for twenty years. Most of them misunderstand its essence and role, though: like WD-40 or duct tape, it's almost entirely for solving impermanent problems too big to ignore, but too small to merit complete re-work. Straight talk on how to get the most from this venerable-but-still-useful tool.

There are several firewall applications for Linux, but what you may not realize is that, at the heart of all these programs is a single all-mighty application that is built right into the Linux Kernel: iptables. This is the Linux firewall. No matter which program you use to configure your firewall under Linux, it ultimately all comes down to iptables. All that these other programs do is configure it.

Tar command is specially designed to zip and extract the data. It helps to reduce the space while getting backed up data. It is used to store and extract files from an archive file. Let’s understand tar command with examples-

Before understanding the difference between soft link and hard link, we need to understand the concept of soft link and hard link as well as concept of Inode in unix file system. Actually, link concept originated to replicate the file at different location without copying it and it is based on file system. File System is closely related withinode which is unique in system.

Inode in file system is a fundamental concept of unix file system and each object in the file system represented by an inode. Inodes store information about files and directories like ownership, access mode, file type etc. Each file is having unique inode. When we copy file from one location to other that time new inode number assigned to the new file.

In part 1 of this series we set up a remote image file as the backup storage, with some extra scripts for easier operations. Now, let’s move on to actually backing up our data. To make this job real easy, let’s turn to the great ruby gem called, unsuprisingly, backup, and use it to back up our database and local files.

We've talked a lot about running multiple operating systems on the same computer—whether it's Windows and Linux, Windows and OS X, or something else—but what happens when it's time to get rid of one? Here's how to delete Windows or Linux from your system after you've dual-booted them.

FPM, FastCGI Process Manager is a PHP FastCGI implementation. Using php-fpm you can have a website running as its own user instead of a common user like Apache or www-data. In this post, we will go through the process of installing and configuring php-fpm with Nginx on CentOS 6.