367 lines
8.9 KiB
Groff
367 lines
8.9 KiB
Groff
.\" $NetBSD: pr.1,v 1.24 2019/09/01 18:31:37 sevan Exp $
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.\"
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.\" Copyright (c) 1991 Keith Muller.
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.\" Copyright (c) 1993
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.\" The Regents of the University of California. All rights reserved.
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.\" Copyright (c) 1994-1995, 1997, 1999-2003, 2009, 2012
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.\" The NetBSD Foundation, Inc.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" Keith Muller of the University of California, San Diego.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" from: @(#)pr.1 8.1 (Berkeley) 6/6/93
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.\"
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.Dd September 1, 2019
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.Dt PR 1
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.Os
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.Sh NAME
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.Nm pr
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.Nd print files
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.Sh SYNOPSIS
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.Nm
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.Op Ar \&+page
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.Op Fl Ar column
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.Op Fl adFfmprt
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.Oo
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.Fl e Ns Oo Ar char Oc Ns Op Ar gap
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.Oc
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.Op Fl h Ar header
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.Oo
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.Fl i Ns Oo Ar char Oc Ns Op Ar gap
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.Oc
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.Op Fl l Ar lines
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.Oo
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.Fl n Ns Oo Ar char Oc Ns Op Ar width
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.Oc
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.Op Fl o Ar offset
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.Oo
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.Fl s Ns Op Ar char
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.Oc
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.Op Fl T Ar timefmt
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.Op Fl w Ar width
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.Op -
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.Op Ar file ...
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.Sh DESCRIPTION
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The
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.Nm
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utility is a printing and pagination filter for text files.
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When multiple input files are specified, each is read, formatted,
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and written to standard output.
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By default, the input is separated into 66-line pages, each with
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.Bl -bullet
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.It
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A 5-line header with the page number, date, time, and
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the pathname of the file.
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.It
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A 5-line trailer consisting of blank lines.
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.El
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.Pp
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If standard output is associated with a terminal,
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diagnostic messages are suppressed until the
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.Nm
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utility has completed processing.
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.Pp
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When multiple column output is specified,
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text columns are of equal width.
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By default text columns are separated by at least one
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.Aq Em blank .
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Input lines that do not fit into a text column are truncated.
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Lines are not truncated under single column output.
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.Sh OPTIONS
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In the following option descriptions, column, lines, offset, page, and
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width are positive decimal integers and gap is a nonnegative decimal integer.
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.Bl -tag -width 4n
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.It Ar \&+page
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Begin output at page number
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.Ar page
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of the formatted input.
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.It Fl Ar column
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Produce output that is
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.Ar columns
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wide (default is 1) that is written vertically
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down each column in the order in which the text
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is received from the input file.
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The options
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.Fl e
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and
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.Fl i
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are assumed.
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This option should not be used with
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.Fl m .
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When used with
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.Fl t ,
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the minimum number of lines is used to display the output.
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.It Fl a
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Modify the effect of the
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.Fl column
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option so that the columns are filled across the page in a round-robin order
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(e.g., when column is 2, the first input line heads column
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1, the second heads column 2, the third is the second line
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in column 1, etc.).
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This option requires the use of the
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.Fl column
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option.
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.It Fl d
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Produce output that is double spaced.
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An extra
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.Aq Em newline
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character is output following every
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.Aq newline
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found in the input.
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.It Fl e Ns Oo Ar char Oc Ns Op Ar gap
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Expand each input
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.Aq tab
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to the next greater column
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position specified by the formula
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.Ar n*gap+1 ,
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where
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.Em n
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is an integer > 0.
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If
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.Ar gap
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is zero or is omitted the default is 8.
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All
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.Aq Em tab
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characters in the input are expanded into the appropriate
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number of
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.Ao Em space Ac Ns s .
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If any nondigit character,
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.Ar char ,
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is specified, it is used as the input tab character.
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If the first character of
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.Ar char
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is a digit then
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.Ar char
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is treated as
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.Ar gap .
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.It Fl F
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Use a
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.Aq Em form-feed
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character for new pages,
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instead of the default behavior that uses a
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sequence of
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.Aq Em newline
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characters.
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.It Fl f
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Same as
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.Fl F .
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Additionally pause before beginning the first page
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if the standard output is associated with a terminal.
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.It Fl h Ar header
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Use the string
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.Ar header
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to replace the
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.Ar file name
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in the header line.
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.It Fl i Ns Oo Ar char Oc Ns Op Ar gap
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In output, replace multiple
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.Ao space Ac Ns s
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with
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.Ao tab Ac Ns s
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whenever two or more
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adjacent
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.Ao space Ac Ns s
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reach column positions
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.Ar gap+1 ,
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.Ar 2*gap+1 ,
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etc.
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If
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.Ar gap
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is zero or omitted, default
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.Aq Em tab
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settings at every eighth column position
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is used.
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If any nondigit character,
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.Ar char ,
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is specified, it is used as the output
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.Aq Em tab
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character.
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If the first character of
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.Ar char
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is a digit then
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.Ar char
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is treated as
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.Ar gap .
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.It Fl l Ar lines
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Override the 66 line default and reset the page length to
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.Ar lines .
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If
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.Ar lines
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is not greater than the sum of both the header and trailer
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depths (in lines), the
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.Nm
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utility suppresses output of both the header and trailer, as if the
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.Fl t
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option were in effect.
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.It Fl m
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Merge the contents of multiple files.
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One line from each file specified by a file operand is
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written side by side into text columns of equal fixed widths, in
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terms of the number of column positions.
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The number of text columns depends on the number of
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file operands successfully opened.
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The maximum number of files merged depends on page width and the
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per process open file limit.
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The options
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.Fl e
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and
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.Fl i
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are assumed.
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.It Fl n Ns Oo Ar char Oc Ns Op Ar width
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Provide
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.Ar width
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digit line numbering.
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The default for
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.Ar width ,
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if not specified, is 5.
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The number occupies the first
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.Ar width
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column positions of each text column or each line of
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.Fl m
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output.
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If
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.Ar char
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(any nondigit character) is given, it is appended to the line number to
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separate it from whatever follows.
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The default for
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.Ar char
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is a
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.Aq Em tab .
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Line numbers longer than
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.Ar width
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columns are truncated.
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.It Fl o Ar offset
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Each line of output is preceded by
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.Ar offset
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.Ao Em space Ac Ns s .
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If the
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.Fl o
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option is not specified, the default is zero.
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The space taken is in addition to the output line width.
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.It Fl p
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Pause before beginning each page if the
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standard output is associated with a terminal.
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.Nm
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will write an
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.Aq Em alert
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to standard error and wait for a
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.Aq Em carriage-return
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to be read on
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.Pa /dev/tty .
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.It Fl r
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Write no diagnostic reports on failure to open a file.
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.It Fl s Ns Op Ar char
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Separate text columns by the single character
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.Ar char
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instead of by the appropriate number of
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.Ao Em space Ac Ns s
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(default for
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.Ar char
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is the
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.Aq Em tab
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character).
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.It Fl T
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Specify an
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.Xr strftime 3
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format string to be used to format the date and time information in the page
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header.
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.It Fl t
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Print neither the five-line identifying
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header nor the five-line trailer usually supplied for each page.
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Quit printing after the last line of each file without spacing to the
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end of the page.
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.It Fl w Ar width
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Set the width of the line to
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.Ar width
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column positions for multiple text-column output only.
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If the
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.Fl w
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option is not specified and the
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.Fl s
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option is not specified, the default width is 72.
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If the
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.Fl w
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option is not specified and the
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.Fl s
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option is specified, the default width is 512.
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.It Ar file
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A pathname of a file to be printed.
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If no
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.Ar file
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operands are specified, or if a
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.Ar file
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operand is
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.Sq Fl ,
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the standard input is used.
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The standard input is used only if no
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.Ar file
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operands are specified, or if a
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.Ar file
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operand is
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.Sq Fl .
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.El
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.Pp
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The
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.Fl s
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option does not allow the option letter to be separated from its
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argument, and the options
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.Fl e ,
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.Fl i ,
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and
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.Fl n
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require that both arguments, if present, not be separated from the option
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letter.
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.Sh ERRORS
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If
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.Nm
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receives an interrupt while printing to a terminal, it
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flushes all accumulated error messages to the screen before
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terminating.
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.Pp
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The
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.Nm
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utility exits 0 on success, and 1 if an error occurs.
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.Pp
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Error messages are written to standard error during the printing
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process (if output is redirected) or after all successful
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file printing is complete (when printing to a terminal).
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.Sh SEE ALSO
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.Xr cat 1 ,
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.Xr more 1 ,
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.Xr strftime 3
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.Sh STANDARDS
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The
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.Nm
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utility is
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.St -p1003.1-2008
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compatible.
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.Sh HISTORY
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A
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.Nm
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utility appeared in
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.At v1 .
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