quakerdate.sh - return today's (or a specified) date in Quaker (Society of Friends) customary date format

quakerdate.sh

#!/usr/bin/env bash
# quakerdate - use GNU date to generate Quaker (Society of Friends)
#  customary date format. Any args will be passed as the date to print
# scruss, 2022-09
# Mon 26 Sep 2022 -> Second day, the twenty-sixth of ninth month 2022

ordinals=(none First Second Third Fourth Fifth Sixth Seventh Eighth \
	       Ninth Tenth Eleventh Twelfth Thirteenth Fourteenth \
	       Fifteenth Sixteenth Seventeenth Eighteenth Nineteenth \
	       Twentieth Twenty-first Twenty-second Twenty-third \
	       Twenty-fourth Twenty-fifth Twenty-sixth Twenty-seventh \
	       Twenty-eighth Twenty-ninth Thirtieth Thirty-first)
datestr="now"
# use any args to specify date other than today
if
    [ $# -ge 0 ]
then
    datestr="$*"
fi
# read values with leading zeroes removed
read -r dow dom mon year < <(date --date="$datestr" +"%w %d %m %Y" |\
			      sed 's/ 0/ /g;')
# date %w returns 0-6 and we want 1-7. Also lowercase later ordinals
echo "${ordinals[$((dow + 1))]}" "day, the" "${ordinals[$dom],}" "of" \
     "${ordinals[$mon],}" "month" "$year"