.\" Copyright (c) 1980, 1993 .\" The Regents of the University of California. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. All advertising materials mentioning features or use of this software .\" must display the following acknowledgement: .\" This product includes software developed by the University of .\" California, Berkeley and its contributors. .\" 4. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" @(#)fold.1 8.1 (Berkeley) 6/6/93 .\" $FreeBSD: src/usr.bin/fold/fold.1,v 1.12 2004/08/02 11:15:01 tjr Exp $ .\" .Dd August 2, 2004 .Dt FOLD 1 .Os .Sh NAME .Nm fold .Nd "fold long lines for finite width output device" .Sh SYNOPSIS .Nm .Op Fl bs .Op Fl w Ar width .Op Ar .Sh DESCRIPTION The .Nm utility is a filter which folds the contents of the specified files, or the standard input if no files are specified, breaking the lines to have a maximum of 80 columns. .Pp The options are as follows: .Bl -tag -width indent .It Fl b Count .Ar width in bytes rather than column positions. .It Fl s Fold line after the last blank character within the first .Ar width column positions (or bytes). .It Fl w Ar width Specify a line width to use instead of the default 80 columns. .Ar Width should be a multiple of 8 if tabs are present, or the tabs should be expanded using .Xr expand 1 before using .Nm . .El .Sh ENVIRONMENT The .Ev LANG , LC_ALL and .Ev LC_CTYPE environment variables affect the execution of .Nm as described in .Xr environ 7 . .Sh SEE ALSO .Xr expand 1 , .Xr fmt 1 .Sh STANDARDS The .Nm utility conforms to .St -p1003.1-2001 . .Sh BUGS If underlining is present it may be messed up by folding.