How to chack calender in linux cal

The cal command in Linux is used to display a calendar in the terminal.
Running cal without any options shows the current month's calendar.
Use cal YYYY to view a specific year's calendar (e.g., cal 2025).
Use cal MM YYYY to view a specific month of a year (e.g., cal 01 2025 for January 2025).
The -3 option shows the previous, current, and next month's calendars together (e.g., cal -3).
Add -y to display the calendar for the entire current year (e.g., cal -y).
It’s a quick and simple way to view dates and months directly in the terminal

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