1. What is the name of the Perl command that deletes a file?
  2. What is the name of the Perl command that creates a new directory?
  3. What is the name of the Perl command that allows you to execute a command from the underlying operating system?
  4. What punctuation character starts the "flag" operators that return information about a file?
  5. What Perl command tells me the current working directory?
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