To see the monthly calendar with the date in the terminal, you can use the cal command in Linux.
# See the current month calendar
# with date in terminal
cal
# OUTPUT
August 2021
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
See the execution of the above command live in repl.it
That's all 😃!