指定した日付でlogを切り取る方法

#!/bin/sh

LANG=C

today=`date +'%Y %b %d'`
tomorrow=`date --date '-1 days ago' +'%Y %b %d'`

end_row=`ls -tr log.* | xargs cat | grep -n "$today" | head -1 | perl -pe 's/:.+//g'`
start_row=`ls -tr log.* | xargs cat | grep -n "$tomorrow" | head -1 | perl -pe 's/:.+//g'`

if [ "$start_row" = "" ]; then
        start_row=`ls -tr log.* | xargs cat | wc -l | awk '{print ＄１+1}'` # ＄１は半角にしてください
fi

start_row=`expr $start_row - 1`

t_row=`expr $start_row - $end_row + 1`
h_row=`expr $start_row + 1`

ls -tr log.* | xargs cat | head -$start_row | tail -$t_row

exit

# 翌日以降の日数を計算します
cnt=1
while [ 1 ]; do
        tomorrow=`date --date "-$cnt days ago" +'%Y %b %d'`
        grep "$tommorow" all_log > /dev/null
        if [ $? = 0 ]; then
                break;
        fi
        cnt=`expr $cnt + 1`
        if [ $cnt = 100 ]; then
                echo "100日経ってもログがないので終了します"
                exit;
        fi
done

today=`date +'%Y %b %d'`
tomorrow=`date --date "-$cnt days ago" +'%Y %b %d'`

#!/bin/sh



LANG=C



tmpfile=all_log

ls -tr log.* | xargs cat > $tmpfile



cutlog () {

	today=＄１    # ＄１は半角にしてください

	tomorrow=＄２ # ＄２は半角にしてください



	if [ "$today" = "$tomorrow" ]; then

		return

	fi



	# 出力ファイル名

	out_file=`echo ＄１ | perl -pe 's/ /_/g'` # ＄１は半角にしてください

	if [ -f $out_file ]; then

		echo $out_file "skip"

		return

	fi



	end_row=`grep -n "$today" $tmpfile | head -1 | perl -pe 's/:.+//g'`

	start_row=`grep -n "$tomorrow" $tmpfile | head -1 | perl -pe 's/:.+//g'`



	start_row=`expr $start_row - 1`



	t_row=`expr $start_row - $end_row + 1`

	h_row=`expr $start_row + 1`



	head -$start_row $tmpfile | tail -$t_row > $out_file

}



datelist=dlist

awk '{print ＄１,＄２,＄３}' all_log | grep ^2 | uniq > $datelist    # ＄１,＄２,＄３は半角に

lcnt=`awk '{print ＄１,＄２,＄３}' all_log | grep ^2 | uniq | wc -l` # ＄１,＄２,＄３は半角に

cnt=1

while [ 1 ]; do

	param1=`head -$cnt $datelist | tail -2 | head -1`

	param2=`head -$cnt $datelist | tail -1`



	cutlog "$param1" "$param2"



	cnt=`expr $cnt + 1`

	if [ $cnt -gt $lcnt ]; then

		break;

	fi

done



rm -f $tmpfile $datelist



exit