1.\" $NetBSD: fold.1,v 1.5 1995/09/01 01:42:42 jtc 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. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" @(#)fold.1 8.1 (Berkeley) 6/6/93 35.\" 36.Dd June 6, 1993 37.Dt FOLD 1 38.Os 39.Sh NAME 40.Nm fold 41.Nd "fold long lines for finite width output device" 42.Sh SYNOPSIS 43.Nm fold 44.Op Fl bs 45.Op Fl w Ar width 46.Ar 47.Sh DESCRIPTION 48.Nm Fold 49is a filter which folds the contents of the specified files, 50or the standard input if no files are specified, 51breaking the lines to have maximum of 80 characters. 52.Pp 53The options are as follows: 54.Bl -tag -width indent 55.It Fl b 56Count 57.Ar width 58in bytes rather than column positions. 59.It Fl s 60Fold line after the last blank character within the first 61.Ar width 62column positions (or bytes). 63.It Fl w 64Specifies a line width to use instead of the default 80 characters. 65.El 66.Pp 67The 68.Nm fold 69utility exits 0 on success, and >0 if an error occurs. 70.Sh SEE ALSO 71.Xr expand 1 72.Sh STANDARDS 73The 74.Nm fold 75utility conforms to 76.St -p1003.2-92 . 77.Sh BUGS 78If underlining is present it may be messed up by folding. 79.Pp 80.Ar Width 81should be a multiple of 8 if tabs are present, or the tabs should 82be expanded using 83.Xr expand 1 84before using 85.Nm fold . 86