1.\" $NetBSD: cut.1,v 1.12 2003/08/07 11:13:32 agc Exp $ 2.\" 3.\" Copyright (c) 1989, 1990, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" the Institute of Electrical and Electronics Engineers, Inc. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" @(#)cut.1 8.1 (Berkeley) 6/6/93 34.\" 35.Dd June 6, 1993 36.Dt CUT 1 37.Os 38.Sh NAME 39.Nm cut 40.Nd select portions of each line of a file 41.Sh SYNOPSIS 42.Nm 43.Fl b Ar list 44.Op Fl n 45.Op Ar 46.Nm 47.Fl c Ar list 48.Op Ar 49.Nm 50.Fl f Ar list 51.Op Fl d Ar delim 52.Op Fl s 53.Op Ar 54.Sh DESCRIPTION 55The 56.Nm 57utility selects portions of each line (as specified by 58.Ar list ) 59from each 60.Ar file 61(or the standard input by default), and writes them to the 62standard output. 63The items specified by 64.Ar list 65can be in terms of column position or in terms of fields delimited 66by a special character. Column numbering starts from 1. 67.Pp 68.Ar List 69is a comma or whitespace separated set of increasing numbers and/or 70number ranges. 71Number ranges consist of a number, a dash 72.Pq Li \- , 73and a second number 74and select the fields or columns from the first number to the second, 75inclusive. 76Numbers or number ranges may be preceded by a dash, which selects all 77fields or columns from 1 to the first number. 78Numbers or number ranges may be followed by a dash, which selects all 79fields or columns from the last number to the end of the line. 80Numbers and number ranges may be repeated, overlapping, and in any order. 81It is not an error to select fields or columns not present in the 82input line. 83.Pp 84The options are as follows: 85.Bl -tag -width Fl 86.It Fl b Ar list 87The 88.Ar list 89specifies byte positions. 90.It Fl c Ar list 91The 92.Ar list 93specifies character positions. 94.It Fl d Ar string 95Use the first character of 96.Ar string 97as the field delimiter character instead of the tab character. 98.It Fl f Ar list 99The 100.Ar list 101specifies fields, delimited in the input by a single tab character. 102Output fields are separated by a single tab character. 103.It Fl n 104Do not split multi-byte characters. 105.It Fl s 106Suppresses lines with no field delimiter characters. 107Unless specified, lines with no delimiters are passed through unmodified. 108.El 109.Sh EXIT STATUS 110.Nm 111exits 0 on success, 1 if an error occurred. 112.Sh SEE ALSO 113.Xr paste 1 114.Sh STANDARDS 115The 116.Nm 117utility conforms to 118.St -p1003.2-92 . 119