Does the opposite of ashift. Or the opposite of apush, 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. Usereverse to do the reverse.
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