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...Lecture perl programming practical extraction and report language is a powerful adaptable scripting became very popular in early s as web reality ideal for processing text files containing strings also good pages tags of different types image url etc these or substrings can be extracted using commands programs are managing applications such passwd authentication database access network multi platform capabilities working with html forms obtaining user inputs enabling cookies tracking clicks counters connecting to mail servers integrating remote file management via the creating dynamic images among many other not compiled but interpreted interpreter your unix system found by typing where it may show usr local bin giving path used run let us start simple hello world program print n warning must first line do add comments before that assuming this called pl we you set executable permission follows chmod x copyright ananda gunawardena scalars scalar either numeric string sequence character...