Thismaterialispresentedinacarefullychosensequence,muchasthoughatutorweresittingnexttoyou,guidingyoualong.Manyauthorstreatthismaterialina“systematic”fashion,whichmakessensefromawriter’sperspectivebutcanbeveryconfusingtonewusers.AnothergoalistoacquaintyouwiththeUnixwayofthinking