tail.1

unix v7是最后一个广泛发布的研究型UNIX版本

.TH TAIL 1 
.SH NAME
tail \- deliver the last part of a file
.SH SYNOPSIS
.B tail
.if t [ \(+-number[\fBlbc\fR] ]
.if n +_number[lbc___]
[ file ]
.SH DESCRIPTION
.I Tail
copies the named file to the standard output beginning
at a designated place.
If no file is named, the standard input is used.
.PP
Copying begins at distance
.I +number
from the beginning, or
.I \-number
from the end of the input.
.I Number
is counted in units of lines, blocks or characters,
according to the appended option
.B l,
.B b
or
.B c.
When no units are specified, counting is by lines.
.SH "SEE ALSO"
dd(1)
.SH BUGS
Tails relative to the end of the file
are treasured up in a buffer, and thus 
are limited in length.
Various kinds of anomalous behavior may happen
with character special files.