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-- Perl 5.10.0 documentation --
unshift
  • unshift ARRAY,LIST

    Does the opposite of a shift. Or the opposite of a push, depending on how you look at it. Prepends list to the front of the array, and returns the new number of elements in the array.

        unshift(@ARGV, '-e') unless $ARGV[0] =~ /^-/;

    Note the LIST is prepended whole, not one element at a time, so the prepended elements stay in the same order. Use reverse to do the reverse.