1.\" $NetBSD: fold.1,v 1.10 2003/08/07 11:13:47 agc Exp $ 2.\" 3.\" Copyright (c) 1980, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" @(#)fold.1 8.1 (Berkeley) 6/6/93 31.\" 32.Dd June 6, 1993 33.Dt FOLD 1 34.Os 35.Sh NAME 36.Nm fold 37.Nd "fold long lines for finite width output device" 38.Sh SYNOPSIS 39.Nm 40.Op Fl bs 41.Op Fl w Ar width 42.Ar 43.Sh DESCRIPTION 44.Nm 45is a filter which folds the contents of the specified files, 46or the standard input if no files are specified, 47breaking the lines to have maximum of 80 characters. 48.Pp 49The options are as follows: 50.Bl -tag -width indent 51.It Fl b 52Count 53.Ar width 54in bytes rather than column positions. 55.It Fl s 56Fold line after the last blank character within the first 57.Ar width 58column positions (or bytes). 59.It Fl w 60Specifies a line width to use instead of the default 80 characters. 61.El 62.Pp 63The 64.Nm 65utility exits 0 on success, and \*[Gt]0 if an error occurs. 66.Sh SEE ALSO 67.Xr expand 1 68.Sh STANDARDS 69The 70.Nm 71utility conforms to 72.St -p1003.2-92 . 73.Sh BUGS 74If underlining is present it may be messed up by folding. 75.Pp 76.Ar Width 77should be a multiple of 8 if tabs are present, or the tabs should 78be expanded using 79.Xr expand 1 80before using 81.Nm . 82