Days of the week with CASE

In your role as a Data Scientist, it is sometimes useful to associate dates with a 'working day' (Monday, Tuesday, Wednesday, Thursday, Friday) or a 'weekend' (Saturday & Sunday).

Your task is to build a small Bash script that will be useful to call in many areas of your data pipeline. It must take in a single argument (string of a day) into ARGV and use a CASE statement to print out whether the argument was a weekday or a weekend. You only need to account for the capitalized case for now.

You also don't need to worry about words or letters before and after. Just use exact matching for this example.

Remember the basic structure of a case statement is:

case MATCHVAR in
  PATTERN1)
  COMMAND1;;
  PATTERN2)
  COMMAND2;;
  *)
  DEFAULT COMMAND;;
esac