1.\" Copyright (c) 1980 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)fold.1 6.5 (Berkeley) 5/6/91 33.\" $Id: fold.1,v 1.4 1993/08/28 04:30:00 jtc Exp $ 34.\" 35.Dd May 6, 1991 36.Dt FOLD 1 37.Os 38.Sh NAME 39.Nm fold 40.Nd "fold long lines for finite width output device" 41.Sh SYNOPSIS 42.Nm fold 43.Op Fl bs 44.Op Fl w Ar width 45.Ar 46.Sh DESCRIPTION 47.Nm Fold 48is a filter which folds the contents of the specified files, 49or the standard input if no files are specified, 50breaking the lines to have maximum of 80 characters. 51.Pp 52The options are as follows: 53.Bl -tag -width indent 54.It Fl b 55Count 56.Ar width 57in bytes rather than column positions. 58.It Fl s 59Fold line after the last blank character within the first 60.Ar width 61column positions (or bytes). 62.It Fl w 63Specifies a line width to use instead of the default 80 characters. 64.El 65.Pp 66The 67.Nm fold 68utility exits 0 on success, and >0 if an error occurs. 69.Sh SEE ALSO 70.Xr expand 1 71.Sh STANDARDS 72The 73.Nm fold 74utility conforms to 75.St -p1003.2-92 . 76.Sh BUGS 77If underlining is present it may be messed up by folding. 78.Pp 79.Ar Width 80should be a multiple of 8 if tabs are present, or the tabs should 81be expanded using 82.Xr expand 1 83before using 84.Nm fold . 85