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      Question

      Which symbol is used in shell scripting to reference a

      positional parameter, e.g., the first argument passed to a script?
      A $0 Correct Answer Incorrect Answer
      B $1 Correct Answer Incorrect Answer
      C $# Correct Answer Incorrect Answer
      D $? Correct Answer Incorrect Answer
      E $$ Correct Answer Incorrect Answer

      Solution

      $1 refers to the first argument passed to a shell script; $0 is the script name, $# is the number of arguments.

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