#!/bin/sh
D1=20030202233107
D2=20030202233108
declare -a MONTHNAMES
MONTHNAMES=(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec)
seconds () {
YEAR=${1:0:4}
MONTH=${MONTHNAMES[`expr ${1:4:2} - 1`]}
DAY=${1:6:2}
HOUR=${1:8:2}
MINUTE=${1:10:2}
SECOND=${1:12}
echo `date -d "$MONTH $DAY $HOUR:$MINUTE:$SECOND CST $YEAR" +%s`
}
expr `seconds $D2` - `seconds $D1`
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