1 cfa37a7b 2004-04-10 devnull .TH TAIL 1
 2 cfa37a7b 2004-04-10 devnull .SH NAME
 3 cfa37a7b 2004-04-10 devnull tail \- deliver the last part of a file
 4 cfa37a7b 2004-04-10 devnull .SH SYNOPSIS
 5 cfa37a7b 2004-04-10 devnull .B tail
 6 cfa37a7b 2004-04-10 devnull [
 7 cfa37a7b 2004-04-10 devnull .BR +- \fInumber\fP[ lbc ][ rf ]
 8 cfa37a7b 2004-04-10 devnull ]
 9 cfa37a7b 2004-04-10 devnull [
10 cfa37a7b 2004-04-10 devnull .I file
11 cfa37a7b 2004-04-10 devnull ]
12 cfa37a7b 2004-04-10 devnull .PP
13 cfa37a7b 2004-04-10 devnull .B tail
14 cfa37a7b 2004-04-10 devnull [
15 cfa37a7b 2004-04-10 devnull .B -fr
16 cfa37a7b 2004-04-10 devnull ]
17 cfa37a7b 2004-04-10 devnull [
18 cfa37a7b 2004-04-10 devnull .B -n
19 cfa37a7b 2004-04-10 devnull .I nlines
20 cfa37a7b 2004-04-10 devnull ]
21 cfa37a7b 2004-04-10 devnull [
22 cfa37a7b 2004-04-10 devnull .B -c
23 cfa37a7b 2004-04-10 devnull .I nbytes
24 cfa37a7b 2004-04-10 devnull ]
25 cfa37a7b 2004-04-10 devnull [
26 cfa37a7b 2004-04-10 devnull .I file
27 cfa37a7b 2004-04-10 devnull ]
28 cfa37a7b 2004-04-10 devnull .SH DESCRIPTION
29 cfa37a7b 2004-04-10 devnull .I Tail
30 cfa37a7b 2004-04-10 devnull copies the named file to the standard output beginning
31 cfa37a7b 2004-04-10 devnull at a designated place.
32 cfa37a7b 2004-04-10 devnull If no file is named, the standard input is copied.
33 cfa37a7b 2004-04-10 devnull .PP
34 cfa37a7b 2004-04-10 devnull Copying begins at position
35 cfa37a7b 2004-04-10 devnull .BI + number
36 cfa37a7b 2004-04-10 devnull measured from the beginning, or
37 cfa37a7b 2004-04-10 devnull .BI - number
38 cfa37a7b 2004-04-10 devnull from the end of the input.
39 cfa37a7b 2004-04-10 devnull .I Number
40 cfa37a7b 2004-04-10 devnull is counted in lines, 1K blocks or bytes,
41 cfa37a7b 2004-04-10 devnull according to the appended flag
42 cfa37a7b 2004-04-10 devnull .LR l ,
43 cfa37a7b 2004-04-10 devnull .LR b ,
44 cfa37a7b 2004-04-10 devnull or
45 cfa37a7b 2004-04-10 devnull .LR c .
46 cfa37a7b 2004-04-10 devnull Default is
47 cfa37a7b 2004-04-10 devnull .B -10l
48 cfa37a7b 2004-04-10 devnull (ten ell).
49 cfa37a7b 2004-04-10 devnull .PP
50 cfa37a7b 2004-04-10 devnull The further flag
51 cfa37a7b 2004-04-10 devnull .L r
52 cfa37a7b 2004-04-10 devnull causes tail to print lines from the end of the file in reverse order;
53 cfa37a7b 2004-04-10 devnull .L f
54 cfa37a7b 2004-04-10 devnull (follow) causes
55 cfa37a7b 2004-04-10 devnull .IR tail ,
56 cfa37a7b 2004-04-10 devnull after printing to the end, to keep watch and
57 cfa37a7b 2004-04-10 devnull print further data as it appears.
58 cfa37a7b 2004-04-10 devnull .PP
59 cfa37a7b 2004-04-10 devnull The second syntax is that promulgated by POSIX, where
60 cfa37a7b 2004-04-10 devnull the
61 cfa37a7b 2004-04-10 devnull .I numbers
62 cfa37a7b 2004-04-10 devnull rather than the options are signed.
63 cfa37a7b 2004-04-10 devnull .SH EXAMPLES
64 cfa37a7b 2004-04-10 devnull .TP
65 cfa37a7b 2004-04-10 devnull .B tail file
66 cfa37a7b 2004-04-10 devnull Print the last 10 lines of a file.
67 cfa37a7b 2004-04-10 devnull .TP
68 cfa37a7b 2004-04-10 devnull .B tail +0f file
69 cfa37a7b 2004-04-10 devnull Print a file, and continue to watch
70 cfa37a7b 2004-04-10 devnull data accumulate as it grows.
71 cfa37a7b 2004-04-10 devnull .TP
72 cfa37a7b 2004-04-10 devnull .B sed 10q file
73 cfa37a7b 2004-04-10 devnull Print the first 10 lines of a file.
74 cfa37a7b 2004-04-10 devnull .SH SOURCE
75 c3674de4 2005-01-11 devnull .B \*9/src/cmd/tail.c
76 cfa37a7b 2004-04-10 devnull .SH BUGS
77 cfa37a7b 2004-04-10 devnull Tails relative to the end of the file
78 cfa37a7b 2004-04-10 devnull are treasured up in a buffer, and thus
79 cfa37a7b 2004-04-10 devnull are limited in length.
80 c8b6342d 2005-01-13 devnull .PP
81 cfa37a7b 2004-04-10 devnull According to custom, option
82 cfa37a7b 2004-04-10 devnull .BI + number
83 cfa37a7b 2004-04-10 devnull counts lines from 1, and counts
84 cfa37a7b 2004-04-10 devnull blocks and bytes from 0.
85 c8b6342d 2005-01-13 devnull .PP
86 cfa37a7b 2004-04-10 devnull .I Tail
87 cfa37a7b 2004-04-10 devnull is ignorant of UTF.