Subversion Repositories planix.SVN

Rev

Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 - 1 
.TH UNIQ 1
2 
.SH NAME
3 
uniq \- report repeated lines in a file
4 
.SH SYNOPSIS
5 
.B uniq
6 
[
7 
.B -udc
8 
[
9 
.BI +- num
10 
]
11 
]
12 
[
13 
.I file
14 
]
15 
.SH DESCRIPTION
16 
.I Uniq
17 
copies the input
18 
.IR file ,
19 
or the standard input, to the
20 
standard output, comparing adjacent lines.
21 
In the normal case, the second and succeeding copies
22 
of repeated lines are
23 
removed.
24 
Repeated lines must be adjacent
25 
in order to be found.
26 
.TP
27 
.B -u
28 
Print unique lines.
29 
.TP
30 
.B -d
31 
Print (one copy of) duplicated lines.
32 
.TP
33 
.B -c
34 
Prefix a repetition count and a tab to each output line.
35 
Implies
36 
.B -u
37 
and
38 
.BR -d .
39 
.TP
40 
.BI - num
41 
The first
42 
.IR num
43 
fields
44 
together with any blanks before each are ignored.
45 
A field is defined as a string of non-space, non-tab characters
46 
separated by tabs and spaces from its neighbors.
47 
.TP
48 
.BI + num
49 
The first
50 
.IR num
51 
characters are ignored.
52 
Fields are skipped before characters.
53 
.SH SOURCE
54 
.B /sys/src/cmd/uniq.c
55 
.SH "SEE ALSO"
56 
.IR sort (1)
57 
.SH BUGS
58 
Field selection and comparison should be compatible with
59 
.IR sort (1).