#!/bin/bash

[ -f ~/.shakespeare.txt ] || {
 wget -O ~/.shakespeare.txt http://www.gutenberg.org/dirs/etext94/shaks12.txt
} 

[ $1 ] || {
 echo "use: $(basename $0) <search string>"
 echo "     $(basename $0) <search 1> | $(basename $0) <search 2> ..."
 exit
} 

if [ -t 0 ]; then
 cat ~/.shakespeare.txt
else
  cat -
fi | tr -d "\015" | awk '
 BEGIN { RS = "" }
 0 < index(toupper($0),toupper(f)) {
  print "\n" $0 "\n"
 }  
' f="$@" | less