Don't quit at the end of file; "follow" file as it grows. End with a BREAK (CTRL-C).
Copy lines in reverse order.
Begin printing at
nth item from end of file.
the item to count: l (lines, the default), b (blocks),
or c (characters).
Same as previous, but use the default count of 10.
n, but start at
nth item from beginning of file.
k, but count from beginning of file.
Show the last 20 lines containing instances of .Ah:
Continually track the latest uucp activity:
tail -f /usr/spool/uucp/LOGFILE
Show the last ten characters of variable name:
echo "$name" | tail -c
Reverse all lines in list:
tail -r list