#! /bin/sh

sed -i -e '/^20101221/d' \
	  -e '/^20101222/d' \
	  -e '/^20101223/d' \
	  -e '/^20101224/d' \
	  -e '/^20101225/d' \
	  -e '/^20101226/d' \
	  -e '/^20101227/d' \
	  -e '/^20101228/d' \
	  -e '/^20101229/d' \
	  -e '/^2010123/d' \
	  -e '/^201101/d' \
	  -e '/^201102/d' \
	  -e '/^201103/d' \
	  -e '/^201104/d' \
	  -e '/^20110501/d' \
	  -e '/^20110509/d' \
	  -e '/^2011051/d' \
	  -e '/^2011052/d' \
	*.txt */*.txt