#!/bin/sh
# usage: nana [[startline] [endline]]? [file]*

if [ "X$1" = "X" ]; then
  echo "usage: nana [[startline] [endline]]? [file]*"
  exit
fi

if [ -f $1 ]
then

  pr -t -n -m $*

else
  O=`expr $1 - 1`
  N=$2
  M=`expr $2 - $O`

  echo \<$3\>
  pr -t -n $3 | head -n$N | tail -n$M  
fi