mknod

The "mknod" command line tool is a Unix/Linux command used for creating special files known as device nodes. It is primarily used by system administrators to create these special files which are crucial for device communication in the Linux kernel. The "mknod" command is followed by options and arguments to specify the type and properties of the device node to create. It can be used to create different types of device files, such as character devices (used for terminal or serial communication) or block devices (used for disk or storage access). The tool allows administrators to specify the major and minor numbers associated with the device, which are used by the kernel to determine the device type and location. The "mknod" command can also be used for creating named pipes (FIFOs) or other types of special files required for specific system configurations. It is a powerful tool that needs to be used with caution and by knowledgeable users due to its potential to affect system functionality.