DVIDVI(1)						      General Commands Manual							 DVIDVI(1)

NAME

       dvidvi - selects and/or re-arranges pages in a TeX dvi file

SYNOPSIS

       dvidvi [param] infile outfile

DESCRIPTION

   Copyright
       dvidvi 1.0, Copyright (C) 1988-91, Radical Eye Software

   Introduction
       The dvidvi program converts a dvi file into another dvi file, with perhaps certain changes.

   Parameters
       -f n	 page n is first page selected
       -l n	 page n is last page selected
       -n n	 select at most n pages. Notice that n is the number of pages selected, independently of the number of pages actually contained in
		 a sheet
       -i { n1..n2 | n1 }[,...]
		 include pages (ranges allowed). When this option is used, ONLY the specified pages are selected. However,  we	can  exclude  from
		 these pages with the option -x
       -x { n1..n2 | n1 }[,...]
		 exclude pages (ranges allowed)
       -q	 work in quiet mode, that is do not print in the screen messages of how the work is being done.
       -r	 reverse the order of the pages.

       The page numbers for the above options -f -l -i and -x can be specified in different ways.
       1)  If a number n is given, it is interpreted as the n'th page from the begining of the .dvi file. Of course, this number is independent of
	   the page number assigned by TeX.
       2)  TeX page numbers are those who are actually written in the page; these page numbers can be modified, for example, by using the TeX com-
	   mands  pagenumbering,  setcounter{page}{n}, and addtocounter{page}{n}.  A TeX page number can be specified by preceding the number n
	   with the character @. Thus, if you specify -f @25 -l @30 you select the pages between 25 and 30, these numbers being those assigned	by
	   TeX.
       3)  However, several pages can have the same TeX page number in a .dvi file.  For example, the introductory pages in a book are numbered i,
	   ii, and so on until the first chapter begins and then, the pages are numbered 1, 2, etc.  In this case, the pages numbered i and  1	in
	   the	.dvi  file  have the same TeX page number. If you want to select for example the second occurrence of the page numbered 1, you can
	   specify a page number as (@2)1. Thus @1 is equivalent to (@1)1. For example, if you specify -f (@2)1  -l(@2)10  you	select	the  pages
	   between 1 and 10 of the first chapter, not the introductory pages between i and x.

       There is another parameter that tells dvidvi how you want to change page layout and specifications.  This is the -m parameter.
       *    The  number preceding the colon is the modulo value.  Everything will be done in chunks of pages this big.	If there is no colon, than
	   the default value is assumed to be one.  The last chunk of pages is padded with as many blank pages as necessary.
       *   Following the colon is a comma-separated list of page numbers.  These page numbers are with respect to the current chunk of pages,  and
	   must  lie in the range zero to the modulo value less one.  If a negative sign precedes the number, then the page is taken from the mir-
	   ror chunk; if there are m chunks, then the mirror chunk of chunk n is the chunk numbered m-n-1.  Put simply, it is the  chunk  numbered
	   the same, only from the end.  This can be used to reverse pages.  If no number is given, the page number defaults to 1.
       *    Following  each  page number is an optional offset value in parenthesis, which consists of a pair of comma-separated dimensions.  Each
	   dimension is a decimal number with an optional unit of measure.  The default unit of measure is inches, or the  last  unit  of  measure
	   used.  All units are in true dimensions.  Allowable units of measure are the same that TeX allows: in, mm, cm, pt, pc, dd, and cc.

EXAMPLES

       -m -	 Reverses the order of the pages.  This time, both the modulo and the page number are defaulted.
       -m  2:0	   Selects the first, third, fifth, etc. pages from the file.  Print this one after printing the next, taking the paper out of the
		 feed tray and reinserting it into the paper feed.
       -m 2:-1	 Selects the second, fourth, etc. pages, and writes them in reverse order.
       -m 4:-1,2(4.25in,0in)
       -m 4:-3,0(4.25in,0in)
		 Useful for printing a little booklet, four pages to a sheet, double-sided, for stapling in the middle.  Print the first one,  put
		 the stack back into the printer upside down, and print the second.  The `in' specifications are superfluous.
       -m ,(1pt,1)
		 Scare	your  system administrator!  Actually, things are so blurry with this option, you may want to send enemies letters printed
		 like this.  *Long* letters.
       -m 4:0(5.5in,4.25),3(0,4.25)
       -m 4:1(0in,4.25),2(5.5,4.25)
		 Print a four-page card on one sheet.  Print the first, rotate the paper 180 degrees and feed it again.  (PostScript people can do
		 funny tricks with PostScript so this isn't necessary.)

								    March 1994								 DVIDVI(1)