Linux Command Line Tutorial For Beginners 31 – cal command
cal, ncal — displays a calendar and the date of Easter use cal [-3hjy] [-A number] [-B number] [[month] year] cal [-3hj] [-A number] …
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cal, ncal — displays a calendar and the date of Easter use cal [-3hjy] [-A number] [-B number] [[month] year] cal [-3hj] [-A number] …
source