Tail command is used to print the last lines of each FILE to standard output.
Similarly there is a command called multitail, it is to print last lines of multiple files.
The program MultiTail lets you view one or multiple files like the original tail program.
To install multitail in in Ubuntu/Debian use following commad:
$ sudo apt-get install multitail
$ multitail -i inputFile1 -i inputFile2