What is the command used to create filesystems in Linux?

The command used to create filesystems in Linux is mkfs. This command stands for "make filesystem" and is versatile, allowing for the creation of different types of filesystems, such as ext4, vfat, and others, depending on the options specified. When you run mkfs followed by the type of filesystem and the device, it initializes the specified storage device to hold a filesystem, preparing it for use by the operating system.

The command can also be invoked in various forms, such as mkfs.ext4 for creating an ext4 filesystem, emphasizing its flexibility. Understanding how to use this command is essential for managing storage devices in Linux systems effectively.