[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] left shift operator (<<) libraries line input operator (<>) Linux compiling Perl from source installing Perl binaries on Perl programs, running on list context load utility (SQL) local variables localtime function logical operators, using for control flow loops |