 @@ -1,361 +1,366 @@
-.\"	$NetBSD: pr.1,v 1.23 2017/07/03 21:34:21 wiz Exp $
+.\"	$NetBSD: pr.1,v 1.24 2019/09/01 18:31:37 sevan Exp $
 .\"
 .\" Copyright (c) 1991 Keith Muller.
 .\" Copyright (c) 1993
 .\"	The Regents of the University of California.  All rights reserved.
 .\" Copyright (c) 1994-1995, 1997, 1999-2003, 2009, 2012
 .\"	The NetBSD Foundation, Inc.
 .\"
 .\" This code is derived from software contributed to Berkeley by
 .\" Keith Muller of the University of California, San Diego.
 .\"
 .\" 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. 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.
 .\"
 .\"     from: @(#)pr.1	8.1 (Berkeley) 6/6/93
 .\"
-.Dd July 31, 2012
+.Dd September 1, 2019
 .Dt PR 1
 .Os
 .Sh NAME
 .Nm pr
 .Nd print files
 .Sh SYNOPSIS
 .Nm
 .Op Ar \&+page
 .Op Fl Ar column
 .Op Fl adFfmprt
 .Oo
 .Fl e Ns Oo Ar char Oc Ns Op Ar gap
 .Oc
 .Op Fl h Ar header
 .Oo
 .Fl i Ns Oo Ar char Oc Ns Op Ar gap
 .Oc
 .Op Fl l Ar lines
 .Oo
 .Fl n Ns Oo Ar char Oc Ns Op Ar width
 .Oc
 .Op Fl o Ar offset
 .Oo
 .Fl s Ns Op Ar char
 .Oc
 .Op Fl T Ar timefmt
 .Op Fl w Ar width
 .Op -
 .Op Ar file ...
 .Sh DESCRIPTION
 The
 .Nm
 utility is a printing and pagination filter for text files.
 When multiple input files are specified, each is read, formatted,
 and written to standard output.
 By default, the input is separated into 66-line pages, each with
 .Bl -bullet
 .It
 A 5-line header with the page number, date, time, and
 the pathname of the file.
 .It
 A 5-line trailer consisting of blank lines.
 .El
 .Pp
 If standard output is associated with a terminal,
 diagnostic messages are suppressed until the
 .Nm
 utility has completed processing.
 .Pp
 When multiple column output is specified,
 text columns are of equal width.
 By default text columns are separated by at least one
 .Aq Em blank .
 Input lines that do not fit into a text column are truncated.
 Lines are not truncated under single column output.
 .Sh OPTIONS
 In the following option descriptions, column, lines, offset, page, and
 width are positive decimal integers and gap is a nonnegative decimal integer.
 .Bl -tag -width 4n
 .It Ar \&+page
 Begin output at page number
 .Ar page
 of the formatted input.
 .It Fl Ar column
 Produce output that is
 .Ar columns
 wide (default is 1) that is written vertically
 down each column in the order in which the text
 is received from the input file.
 The options
 .Fl e
 and
 .Fl i
 are assumed.
 This option should not be used with
 .Fl m .
 When used with
 .Fl t ,
 the minimum number of lines is used to display the output.
 .It Fl a
 Modify the effect of the
 .Fl column
 option so that the columns are filled across the page in a round-robin order
 (e.g., when column is 2, the first input line heads column
 , the second heads column 2, the third is the second line
 in column 1, etc.).
 This option requires the use of the
 .Fl column
 option.
 .It Fl d
 Produce output that is double spaced.
 An extra
 .Aq Em newline
 character is output following every
 .Aq newline
 found in the input.
 .It Fl e Ns Oo Ar char Oc Ns Op Ar gap
 Expand each input
 .Aq tab
 to the next greater column
 position specified by the formula
 .Ar n*gap+1 ,
 where
 .Em n
 is an integer > 0.
 If
 .Ar gap
 is zero or is omitted the default is 8.
 All
 .Aq Em tab
 characters in the input are expanded into the appropriate
 number of
 .Ao Em space Ac Ns s .
 If any nondigit character,
 .Ar char ,
 is specified, it is used as the input tab character.
 If the first character of
 .Ar char
 is a digit then
 .Ar char
 is treated as
 .Ar gap .
 .It Fl F
 Use a
 .Aq Em form-feed
 character for new pages,
 instead of the default behavior that uses a
 sequence of
 .Aq Em newline
 characters.
 .It Fl f
 Same as
 .Fl F .
 Additionally pause before beginning the first page
 if the standard output is associated with a terminal.
 .It Fl h Ar header
 Use the string
 .Ar header
 to replace the
 .Ar file name
 in the header line.
 .It Fl i Ns Oo Ar char Oc Ns Op Ar gap
 In output, replace multiple
 .Ao space Ac Ns s
 with
 .Ao tab Ac Ns s
 whenever two or more
 adjacent
 .Ao space Ac Ns s
 reach column positions
 .Ar gap+1 ,
 .Ar 2*gap+1 ,
 etc.
 If
 .Ar gap
 is zero or omitted, default
 .Aq Em tab
 settings at every eighth column position
 is used.
 If any nondigit character,
 .Ar char ,
 is specified, it is used as the output
 .Aq Em tab
 character.
 If the first character of
 .Ar char
 is a digit then
 .Ar char
 is treated as
 .Ar gap .
 .It Fl l Ar lines
 Override the 66 line default and reset the page length to
 .Ar lines .
 If
 .Ar lines
 is not greater than the sum of both the header and trailer
 depths (in lines), the
 .Nm
 utility suppresses output of both the header and trailer, as if the
 .Fl t
 option were in effect.
 .It Fl m
 Merge the contents of multiple files.
 One line from each file specified by a file operand is
 written side by side into text columns of equal fixed widths, in
 terms of the number of column positions.
 The number of text columns depends on the number of
 file operands successfully opened.
 The maximum number of files merged depends on page width and the
 per process open file limit.
 The options
 .Fl e
 and
 .Fl i
 are assumed.
 .It Fl n Ns Oo Ar char Oc Ns Op Ar width
 Provide
 .Ar width
 digit line numbering.
 The default for
 .Ar width ,
 if not specified, is 5.
 The number occupies the first
 .Ar width
 column positions of each text column or each line of
 .Fl m
 output.
 If
 .Ar char
 (any nondigit character) is given, it is appended to the line number to
 separate it from whatever follows.
 The default for
 .Ar char
 is a
 .Aq Em tab .
 Line numbers longer than
 .Ar width
 columns are truncated.
 .It Fl o Ar offset
 Each line of output is preceded by
 .Ar offset
 .Ao Em space Ac Ns s .
 If the
 .Fl o
 option is not specified, the default is zero.
 The space taken is in addition to the output line width.
 .It Fl p
 Pause before beginning each page if the
 standard output is associated with a terminal.
 .Nm
 will write an
 .Aq Em alert
 to standard error and wait for a
 .Aq Em carriage-return
 to be read on
 .Pa /dev/tty .
 .It Fl r
 Write no diagnostic reports on failure to open a file.
 .It Fl s Ns Op Ar char
 Separate text columns by the single character
 .Ar char
 instead of by the appropriate number of
 .Ao Em space Ac Ns s
 (default for
 .Ar char
 is the
 .Aq Em tab
 character).
 .It Fl T
 Specify an
 .Xr strftime 3
 format string to be used to format the date and time information in the page
 header.
 .It Fl t
 Print neither the five-line identifying
 header nor the five-line trailer usually supplied for each page.
 Quit printing after the last line of each file without spacing to the
 end of the page.
 .It Fl w Ar width
 Set the width of the line to
 .Ar width
 column positions for multiple text-column output only.
 If the
 .Fl w
 option is not specified and the
 .Fl s
 option is not specified, the default width is 72.
 If the
 .Fl w
 option is not specified and the
 .Fl s
 option is specified, the default width is 512.
 .It Ar file
 A pathname of a file to be printed.
 If no
 .Ar file
 operands are specified, or if a
 .Ar file
 operand is
 .Sq Fl ,
 the standard input is used.
 The standard input is used only if no
 .Ar file
 operands are specified, or if a
 .Ar file
 operand is
 .Sq Fl .
 .El
 .Pp
 The
 .Fl s
 option does not allow the option letter to be separated from its
 argument, and the options
 .Fl e ,
 .Fl i ,
 and
 .Fl n
 require that both arguments, if present, not be separated from the option
 letter.
 .Sh ERRORS
 If
 .Nm
 receives an interrupt while printing to a terminal, it
 flushes all accumulated error messages to the screen before
 terminating.
 .Pp
 The
 .Nm
 utility exits 0 on success, and 1 if an error occurs.
 .Pp
 Error messages are written to standard error during the printing
 process (if output is redirected) or after all successful
 file printing is complete (when printing to a terminal).
 .Sh SEE ALSO
 .Xr cat 1 ,
 .Xr more 1 ,
 .Xr strftime 3
 .Sh STANDARDS
 The
 .Nm
 utility is
 .St -p1003.1-2008
 compatible.
 .Sh HISTORY
+A
 .Nm
 utility appeared in
 .At v1 .