I have an array that has multiple entries of the same element in it. I want to make a new array with just the unique elements in it. How can this be done? Also, if I am taking input into my script from the shell with 
while (<>){
....
}

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how do I account for multiple lines of input into an array or has? In other words, I want to distinguish between lines of input, but I do not know how to get Perl to input one line (carriage return) then another line and etc.

In reply to Deciding unique elements of an array by Spliter

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