Linux Commands calendar

•	cal -3	Display a calendar
•	cal 9 1752	Display a calendar for a particular month year
•	date -d fri	What date is it this friday. See also day
•	[ $(date -d "tomorrow" +%d) = "01" ] || exit	exit a script unless it's the last day of the month
•	date --date='25 Dec' +%A	What day does xmas fall on, this year
•	date --date='@2147483647'	Convert seconds since the epoch (1970-01-01 UTC) to date
•	TZ=':America/Los_Angeles' date	What time is it on West coast of US (use tzselect to find TZ)
	echo "mail -s 'get the train' P@draigBrady.com < /dev/null" | at 17:45	Email reminder
•	echo "DISPLAY=$DISPLAY xmessage cooker" | at "NOW + 30 minutes"	Popup reminder
locales

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