#! /bin/sh
#   syntax: halb <original ps-file> <new ps-file>
#   new ps-file will have half as many pages
# 	written by Jan-Uwe Ness
#

#out=`mktemp tempXXXXXX` || exit 1
out=72541357
trap "rm -f $out*" 0 1 2 3 5

 psnup -2 $1 $out.ps
 pstops 2:0,1U'(21.cm,30cm)' $out.ps $2