Question: Write a Bash script that returns the sum of its parameters. If no parameters are given, it should print a help message Need at least

Write a Bash script that returns the sum of its parameters.

Write a Bash script that returns the sum of its parameters. If no parameters are given, it should print a help message "Need at least one parameter... ". You can assume that the user will always enter numeric values as parameters. Comment your script where appropriate

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