In Unix, device files are separated into two kinds, one for character devices and another for block devices. Character devices handle input/output operations of arbitrary size, while block devices operate through fixed-size buffers. The two types are related to the different modes of access. Let’s take a look at the difference between them. When looking …
Others
Mkfs creates a filesystem on a formatted media or storage device. This is a file system for your computer that organizes the files and directories into a hierarchy. It also creates a partition on a hard drive. A partition is a logically separate section of a hard drive that can store various files. Normally, mkfs …
The write command is essential for sending messages to other users. This command copies lines from one terminal to another, so you can use it to send a message to multiple users at the same time. This command is available for both root and non-root users. You can use write to send a short message …
How Many Gb is Window 7? depends on your computer’s operating system. Windows 10 requires approximately 15 GB of disk space to be installed. This amount includes the system’s default apps, games, and updates. However, you should also keep in mind that Windows 7 requires at least 20 GB of free space on your hard …
If you’re unsure where to install Eclipse on your Linux computer, you can follow these steps: First, open a terminal and select the command “eclipse”. It will automatically install the necessary files. You should now be able to launch Eclipse. If you don’t know where to go, you can create aliases to run it from …
If you want to determine if your server is working, you can use a command known as ping. This is a command that checks if the server and client are in contact. Depending on the host operating system, the TTL value can be anywhere from 0 to 255. If the packet is not received, it …
If you’re new to Linux, you’re probably wondering: What is ZFS? What are its benefits? This article will give you an overview of ZFS. Its rich feature set makes it one of the most complex file systems available. While ZFS is a great tool for high-end storage, it can also be a significant performance drain. …
If you are wondering how to recover Grub in Linux, you have come to the right place. Grub is the boot loader that tells your PC where to look for installed operating systems. When you power on your PC, Grub starts to look for information it needs to boot up properly. Unfortunately, sometimes it becomes …
If you’re running Ubuntu, you’ve probably heard of the update-alternatives command, but what exactly is it? The update-alternatives program keeps track of all the applications and executables that it knows about, and makes symbolic links to them in /var/lib/alternatives. The chosen alternative will be linked periodically under /etc/alternatives. It may also be linked under a …
To remove a null character from a Unix file, you must first understand what this character is. A null character is an empty string, and it cannot be used in a filename, shell script, or in a directory. Fortunately, there are two ways to remove a null character. You can use the sed command, which …