Linux has many different kinds of files. First let’s start with a little more basic discussion: what is a file?
Basically, a file is anything that can have a file descriptor associated with it.
What is a file descriptor?
Ahh. Glad you asked. Sit down, this could take a bit.
Linux is POSIX compliant, which [...]
Sometimes when on a Linux system, you will encounter a problem with running out of disk space when it appears that you haven’t. This is because there are actually two different resources on a Linux filesystem.
Disk space – this is the total amount of space allotted to all of your files.
Inodes – this is [...]
This is one of those topics that separates the men from the boys, so to speak. Backups. Always, always, always have them.
Do not treat RAID arrays as if they are inviolable. It’s always a possibility that more than one disk could fail. And it’s also a possibility that the hardware itself [...]
OK, this first trick involves getting your root password back when you’ve lost it. Ever had that happen? It can be rather nerve-wracking. And if you try to reboot the box and bring it up into single-user, it may actually ask for your password before allowing you to get a shell. [...]