typo.1

UNIX v6源代码 这几乎是最经典的unix版本 unix操作系统设计和莱昂氏unix源代码分析都是用的该版

.th TYPO I 5/15/74
.sh NAME
typo \*- find possible typos
.sh SYNOPSIS
.bd typo
[
.bd \*-1
] [
.bd \*-n
] file ...
.sh DESCRIPTION
.it Typo
hunts through a document for unusual
words, typographic errors, and
.it "hapax legomena"
and prints
them on the standard output.
.s3
The words used in the document are printed
out in decreasing order of peculiarity along
with an index of peculiarity.  An index of 10
or more is considered peculiar.  Printing of
certain very common English words is suppressed.
.s3
The statistics for judging words are taken from
the document itself, with some help from known
statistics of English.
The
.bd \*-n
option suppresses
the help from English and should be used if the
document is written in, for example, Urdu.
.s3
The
.bd \*-1
option causes the final output to appear in a single
column instead of three
columns.
The normal header and pagination is also suppressed.
.s3
Roff (I)
and
nroff (I)
control lines are ignored.
Upper case is mapped into lower case.
Quote marks, vertical bars, hyphens, and ampersands within words are 
equivalent to spaces.
Words hyphenated across lines are put back together.
.sh FILES
/tmp/ttmp??
.br
/usr/lib/salt
.br
/usr/lib/w2006
.sh BUGS
Because
of the mapping into lower case and the stripping
of special characters, words
may be hard to locate in the original text.
.s3
The escape sequences
of
troff (I)
are not correctly recognized.