tail --help

tail --version

cat alpha.txt

cat cal.txt

tail file

tail alpha.txt

tail file1 file2

tail cal.txt alpha.txt

tail -q file1 file2

tail -q cal.txt alpha.txt

tail -n file

tail -n 5 alpha.txt

tail -5 alpha.txt

tail +9 alpha.txt

tail -c file

tail -c 25 alpha.txt

tail -v file

tail -v alpha.txt