SUMMARY: KSH day of week script in past

The answer was to use gnu date like so:

#DAY=`/usr/local/bin/date -d 07/11/05 +%a`
# echo $DAY
Mon




also someone was nice enuf to give me this ksh function:

dow() { # year month day
	week=`cal "${2}" "${1}" | grep -w "${3}"`
	sun=`echo "${week}" | cut -c 01-02`
	mon=`echo "${week}" | cut -c 04-05`
	tue=`echo "${week}" | cut -c 07-08`
	wed=`echo "${week}" | cut -c 10-11`
	thu=`echo "${week}" | cut -c 13-14`
	fri=`echo "${week}" | cut -c 16-17`
	sat=`echo "${week}" | cut -c 19-20`
	if [ "${3}" -eq "${sun}" ]; then echo Sun; fi
	if [ "${3}" -eq "${mon}" ]; then echo Mon; fi
	if [ "${3}" -eq "${tue}" ]; then echo Tue; fi
	if [ "${3}" -eq "${wed}" ]; then echo Wed; fi
	if [ "${3}" -eq "${thu}" ]; then echo Thu; fi
	if [ "${3}" -eq "${fri}" ]; then echo Fri; fi
	if [ "${3}" -eq "${sat}" ]; then echo Sat; fi
}

dow 2004 12 31

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