Install cu by entering the following commands in the terminal:
sudo apt update sudo apt install cu
Description:
call up another system
The cu command is used to call up another system and act as a dial-in terminal (mostly on a serial line). It can also do simple file transfers with no error checking. . cu is part of the UUCP source but has been split into its own package because it can be useful even if you do not do uucp.
Homepage: http://airs.com/ian/uucp.html
Version: 1.07-24
Section: comm