/dev is the location of special or device files. It is a very interesting directory that highlights one important aspect of the Linux filesystem – everything is a file or a directory.

What does Dev contain in Linux?

The /dev directory contains the special device files for all the devices. The device files are created during installation, and later with the /dev/MAKEDEV script.

What is the dev command?

The dev-make BASIC program adds an entity to the system. This command is normally used to add devices to the system. The most common usage is to create a serial device to be used with the BASIC get and send statements, even if there is no D3 process connected to the device.