1.\" Copyright (c) 1989, 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" the Institute of Electrical and Electronics Engineers, Inc. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 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. 22.\" 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 33.\" SUCH DAMAGE. 34.\" 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 $ 38.\" 39.Dd June 6, 1993 40.Dt CUT 1 41.Os 42.Sh NAME 43.Nm cut 44.Nd select portions of each line of a file 45.Sh SYNOPSIS 46.Nm 47.Fl b Ar list 48.Op Fl n 49.Op Ar 50.Nm 51.Fl c Ar list 52.Op Ar 53.Nm 54.Fl f Ar list 55.Op Fl w | Fl d Ar delim 56.Op Fl s 57.Op Ar 58.Sh DESCRIPTION 59The 60.Nm 61utility selects portions of each line (as specified by 62.Ar list ) 63from each 64.Ar file 65and writes them to the standard output. 66If no 67.Ar file 68arguments are specified, or a file argument is a single dash 69.Pq Sq Fl , 70.Nm 71reads from the standard input. 72The items specified by 73.Ar list 74can be in terms of column position or in terms of fields delimited 75by a special character. 76Column numbering starts from 1. 77.Pp 78The 79.Ar list 80option argument 81is a comma or whitespace separated set of increasing numbers and/or 82number ranges. 83Number ranges consist of a number, a dash 84.Pq Sq \- , 85and a second number 86and select the fields or columns from the first number to the second, 87inclusive. 88Numbers or number ranges may be preceded by a dash, which selects all 89fields or columns from 1 to the first number. 90Numbers or number ranges may be followed by a dash, which selects all 91fields or columns from the last number to the end of the line. 92Numbers and number ranges may be repeated, overlapping, and in any order. 93It is not an error to select fields or columns not present in the 94input line. 95.Pp 96The options are as follows: 97.Bl -tag -width indent 98.It Fl b Ar list 99The 100.Ar list 101specifies byte positions. 102.It Fl c Ar list 103The 104.Ar list 105specifies character positions. 106.It Fl d Ar delim 107Use the first character of 108.Ar delim 109as the field delimiter character instead of the tab character. 110.It Fl f Ar list 111The 112.Ar list 113specifies fields, delimited in the input by a single tab character. 114Output fields are separated by a single tab character. 115.It Fl n 116Do not split multi-byte characters. 117.It Fl s 118Suppress lines with no field delimiter characters. 119Unless specified, lines with no delimiters are passed through unmodified. 120.It Fl w 121Use whitespace (spaces and tabs) as the delimiter. 122Consecutive spaces and tabs count as one single field separator. 123.El 124.Pp 125The 126.Nm 127utility exits with 0 on success or 1 if an error occurred. 128.Sh SEE ALSO 129.Xr paste 1 130.Sh STANDARDS 131The 132.Nm 133utility conforms to 134.St -p1003.2-92 . 135