1) Use the date command to print the Coordinated Universal Time (UTC time zone).
$ man date # read the man page to figure out how to do it
$ date
$ date -u # what is the difference?
2) Use the date command to just print the month.
$ date +%B
3) What does the cal command do? Show some different examples.
# cal displays a calendar
$ cal -1
$ cal -3
$ cal -y
4) What does the seq command do? Show some different examples.
# seq prints a sequence of numbers
$ seq 1 20
$ seq 1 2 20
$ seq -w 1 2 20