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OpenDarwin 7.2.1 - man page for pr (opendarwin section 1)

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PR(1)				   BSD General Commands Manual				    PR(1)

NAME
     pr -- print files

SYNOPSIS
     pr [+page] [-column] [-adFfmprt] [[-e] [char] [gap]] [-L locale] [-h header] [[-i] [char]
	[gap]] [-l lines] [-o offset] [[-s] [char]] [[-n] [char] [width]] [-w width] [-]
	[file ...]

DESCRIPTION
     The pr 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

     o	 A 5-line header with the page number, date, time, and the pathname of the file.

     o	 A 5-line trailer consisting of blank lines.

     If standard output is associated with a terminal, diagnostic messages are suppressed until
     the pr utility has completed processing.

     When multiple column output is specified, text columns are of equal width.  By default text
     columns are separated by at least one <blank>.  Input lines that do not fit into a text col-
     umn are truncated.  Lines are not truncated under single column output.

OPTIONS
     In the following option descriptions, column, lines, offset, page, and width are positive
     decimal integers and gap is a nonnegative decimal integer.

     +page
	   Begin output at page number page of the formatted input.

     -column
	   Produce output that is 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 -e and -i are assumed.  This option should not be used with -m.  When used
	   with -t, the minimum number of lines is used to display the output.	(To columnify and
	   reshape text files more generally and without additional formatting, see the rs(1)
	   utility.)

     -a    Modify the effect of the -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 1,
	   the second heads column 2, the third is the second line in column 1, etc.).	This
	   option requires the use of the -column option.

     -d    Produce output that is double spaced.  An extra <newline> character is output follow-
	   ing every <newline> found in the input.

     -e [char][gap]
	   Expand each input <tab> to the next greater column position specified by the formula
	   n*gap+1, where n is an integer > 0.	If gap is zero or is omitted the default is 8.
	   All <tab> characters in the input are expanded into the appropriate number of
	   <space>s.  If any nondigit character, char, is specified, it is used as the input tab
	   character.

     -F    Use a <form-feed> character for new pages, instead of the default behavior that uses a
	   sequence of <newline> characters.

     -f    Same as -F but pause before beginning the first page if standard output is a terminal.

     -h header
	   Use the string header to replace the file name in the header line.

     -i [char][gap]
	   In output, replace multiple <space>s with <tab>s whenever two or more adjacent
	   <space>s reach column positions gap+1, 2*gap+1, etc.  If gap is zero or omitted,
	   default <tab> settings at every eighth column position is used.  If any nondigit char-
	   acter, char, is specified, it is used as the output <tab> character.

     -L locale
	   Use locale specified as argument instead of one found in environment.  Use "C" to
	   reset locale to default.

     -l lines
	   Override the 66 line default and reset the page length to lines.  If lines is not
	   greater than the sum of both the header and trailer depths (in lines), the pr utility
	   suppresses output of both the header and trailer, as if the -t option were in effect.

     -m    Merge the contents of multiple files.  One line from each file specified by a file op-
	   erand 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 -e and -i are assumed.

     -n [char][width]
	   Provide width digit line numbering.	The default for width, if not specified, is 5.
	   The number occupies the first width column positions of each text column or each line
	   of -m output.  If char (any nondigit character) is given, it is appended to the line
	   number to separate it from whatever follows.  The default for char is a <tab>.  Line
	   numbers longer than width columns are truncated.

     -o offset
	   Each line of output is preceded by offset <spaces>s.  If the -o option is not speci-
	   fied, the default is zero.  The space taken is in addition to the output line width.

     -p    Pause before each page if the standard output is a terminal.  pr will write an alert
	   character to standard error and wait for a carriage return to be read on the terminal.

     -r    Write no diagnostic reports on failure to open a file.

     -s char
	   Separate text columns by the single character char instead of by the appropriate num-
	   ber of <space>s (default for char is the <tab> character).

     -t    Print neither the five-line identifying header nor the five-line trailer usually sup-
	   plied for each page.  Quit printing after the last line of each file without spacing
	   to the end of the page.

     -w width
	   Set the width of the line to width column positions for multiple text-column output
	   only.  If the -w option is not specified and the -s option is not specified, the
	   default width is 72.  If the -w option is not specified and the -s option is speci-
	   fied, the default width is 512.

     file  A pathname of a file to be printed.	If no file operands are specified, or if a file
	   operand is '-', the standard input is used.	The standard input is used only if no
	   file operands are specified, or if a file operand is '-'.

     The -s option does not allow the option letter to be separated from its argument, and the
     options -e, -i, and -n require that both arguments, if present, not be separated from the
     option letter.

ERRORS
     If pr receives an interrupt while printing to a terminal, it flushes all accumulated error
     messages to the screen before terminating.

DIAGNOSTICS
     The pr utility exits 0 on success, and 1 if an error occurs.

     Error messages are written to standard error during the printing process (if output is redi-
     rected) or after all successful file printing is complete (when printing to a terminal).

SEE ALSO
     cat(1), more(1), rs(1)

STANDARDS
     The pr utility is IEEE Std 1003.1-2001 (``POSIX.1'') compatible.

HISTORY
     A pr command appeared in Version 1 AT&T UNIX.

BSD					September 20, 2001				      BSD
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