The _________ command is used to assign an IP address to a device

(Please specify the command without path information)

Answer: ifconfig

Explanation/Reference:
From the man pages:
Ifconfig is used to configure the kernel-resident network interfaces. It is used at boot time to set up interfaces as necessary. After that, it is usually only needed when debugging or when system tuning is needed. If no arguments are given, ifconfig displays the status of the currently active interfaces. If a single interface argument is given, it displays the status of the given interface only; if a single  -a  argument is given, it displays the status of all interfaces, even those that are down. Otherwise, it configures an interface.