OLD_JULIAN_VAR=$(date -u -d 1840-12-31 +%s)
OLD_JULIAN_VAR=$(date -u -d 1840-12-31 +%s)
TODAY_DATE=`date --date="$odate" +"%Y-%m-%d"`
TODAY_DATE_VAR=`date -u -d "$TODAY_DATE" +"%s"`
export JULIAN_DATE=$((((TODAY_DATE_VAR - OLD_JULIAN_VAR))/86400))
echo $JULIAN_DATE
TODAY_DATE=date --date="$odate" +"%Y-%m-%d"
TODAY_DATE_VAR=date -u -d "$TODAY_DATE" +"%s"
export JULIAN_DATE=$((((TODAY_DATE_VAR - OLD_JULIAN_VAR))/86400))
echo $JULIAN_DATE
thethe mathematically
[(date in sec)-(1840-12-31 in sec)]/86400
[(date in sec)-(1840-12-31 in sec)]/86400