huiliu · July 4, 2013 15:34
diff --git a/calculate_date.sh b/calculate_date.sh
 #!/bin/bash

 # Use shell calculate the date interval before today

 SECOND_TODAY=`date +%s`
 SECOND_PER_DAY=86400

 INTERVAL=7

 SEQ=`seq $INTERVAL`

 #set -x
 for i in $SEQ
 do
    DATE=`echo "$SECOND_TODAY - $SECOND_PER_DAY * ${i}" | bc`
    echo `date --date="@$DATE" +%Y%m%d`
 done
 #set +x
	#!/bin/bash

	# Use shell calculate the date interval before today

	SECOND_TODAY=`date +%s`
	SECOND_PER_DAY=86400

	INTERVAL=7

	SEQ=`seq $INTERVAL`

	#set -x
	for i in $SEQ
	do
	DATE=`echo "$SECOND_TODAY - $SECOND_PER_DAY * ${i}" \| bc`
	echo `date --date="@$DATE" +%Y%m%d`
	done
	#set +x
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