output the last part of files

-f, --follow[={name|descriptor}]
       output appended data as the file grows; -f, --follow, and --follow=descriptor are equivalent

Print  the  last  10 lines of each FILE to standard output.  With more than one FILE, precede each with a
header giving the file name.  With no FILE, or when FILE is -, read standard input.

-F     same as --follow=name --retry