Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] access array elements databases hash elements algorithms, high-water mark ampersand, subroutines anchors regular expressions word anchors answers to exercises arguments invocation 2nd subroutines passing array slices arrays @ sign @ARGV bits elements access foreach control grep and indices 2nd interpolation to string keys map and pop operator printf and push operator reverse operator shift operator sort operator splice operator unshift operator assigning hashes keys values assignment binary assignment operators list values to variables scalar variables associativity, operators at sign (@), array referencing autodecrement operator autoincrement operator preincrements automatic match variables |