Obtaining Online InformationRunning Perl ScriptsPerl Variable Types: Scalars, Arrays, and HashesScalarsArraysHashesArray and Hash Array SlicesPerl Contexts: Void, Scalar, List, and BooleanVoidScalarListBooleanProgram and Subroutine ParametersEnvironmental Variable AccessVariable TypesTaint ModePerl ReferencesArrow NotationThe ref OperatorAnonymous Arrays and HashesPerl’s Object OrientationPackagesBless this Object