tail
[options
] [file
]
Print the last ten lines of the named
file
. Use only one of
-f
or
-r
.
Don't quit at the end of file; "follow" file as it grows. End with a BREAK (CTRL-C).
Copy lines in reverse order.
n
[
k
]
Begin printing at
n
th item from end of file.
k
specifies the item to count:
l
(lines, the default),
b
(blocks), or
c
(characters).
k
Same as previous, but use the default count of 10.
n
[
k
]
Like
-
n
, but start at
n
th item from beginning of file.
k
Like
-
k
, but count from beginning of file.
Show the last 20 lines containing instances of .Ah:
grep '.Ah'
file
|tail -20
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