How to get the output of the last line of the last file in a directory in Centos7?

Question

linux

Good afternoon!
There is a directory in which once a day a file is created in which data is written during the day.
What is the command to display this data on the screen? (We need a permanent command that will take a fresh file from this directory and output the data of the last line from it)

Answer 1

Most recent file ls -t | head -n1
Last line of file xxx.txt cat xxx.txt | tail -n1
All togethercat $(ls -t | head -n1) | tail -n1

Answer 2

Find + tail -n1