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→Main Objectives of this Practice Tutorial
:* Define the terms '''Standard Input''' ('''stdin'''), '''Standard Output''' ('''stdout'''), and '''Standard Error''' ('''stderr''')
:* Understand the purposes of the redirection symbols '''>''', '''>>''', '''2>''', '''2>>''', and '''|''' (pipe)
:* Understand the purpose of the following file manipulation commands: '''cut''', '''tr''', and '''wc'''
