1 .\" Copyright (c) 1989, 1990, 1993
2 .\" The Regents of the University of California. All rights reserved.
4 .\" This code is derived from software contributed to Berkeley by
5 .\" the Institute of Electrical and Electronics Engineers, Inc.
7 .\" Redistribution and use in source and binary forms, with or without
8 .\" modification, are permitted provided that the following conditions
10 .\" 1. Redistributions of source code must retain the above copyright
11 .\" notice, this list of conditions and the following disclaimer.
12 .\" 2. Redistributions in binary form must reproduce the above copyright
13 .\" notice, this list of conditions and the following disclaimer in the
14 .\" documentation and/or other materials provided with the distribution.
15 .\" 3. All advertising materials mentioning features or use of this software
16 .\" must display the following acknowledgement:
17 .\" This product includes software developed by the University of
18 .\" California, Berkeley and its contributors.
19 .\" 4. Neither the name of the University nor the names of its contributors
20 .\" may be used to endorse or promote products derived from this software
21 .\" without specific prior written permission.
23 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 .\" @(#)cut.1 8.1 (Berkeley) 6/6/93
36 .\" $FreeBSD: src/usr.bin/cut/cut.1,v 1.9.2.5 2003/05/26 12:35:35 hmp Exp $
37 .\" $DragonFly: src/usr.bin/cut/cut.1,v 1.4 2008/03/09 16:06:08 swildner Exp $
44 .Nd select portions of each line of a file
55 .Op Fl w | Fl d Ar delim
61 utility selects portions of each line (as specified by
65 and writes them to the standard output.
68 arguments are specified, or a file argument is a single dash
71 reads from the standard input.
72 The items specified by
74 can be in terms of column position or in terms of fields delimited
75 by a special character.
76 Column numbering starts from 1.
81 is a comma or whitespace separated set of increasing numbers and/or
83 Number ranges consist of a number, a dash
86 and select the fields or columns from the first number to the second,
88 Numbers or number ranges may be preceded by a dash, which selects all
89 fields or columns from 1 to the first number.
90 Numbers or number ranges may be followed by a dash, which selects all
91 fields or columns from the last number to the end of the line.
92 Numbers and number ranges may be repeated, overlapping, and in any order.
93 It is not an error to select fields or columns not present in the
96 The options are as follows:
97 .Bl -tag -width indent
101 specifies byte positions.
105 specifies character positions.
107 Use the first character of
109 as the field delimiter character instead of the tab character.
113 specifies fields, delimited in the input by a single tab character.
114 Output fields are separated by a single tab character.
116 Do not split multi-byte characters.
118 Suppress lines with no field delimiter characters.
119 Unless specified, lines with no delimiters are passed through unmodified.
121 Use whitespace (spaces and tabs) as the delimiter.
122 Consecutive spaces and tabs count as one single field separator.
127 utility exits with 0 on success or 1 if an error occurred.