00329nam a2200133Ia 4500008004100000020001500041041001200056100001100068245004600079250000800125260004000133300000800173650001400181221030s9999    xx            000 0 und d  a0070635463  aEnglish  aS. Das 0aUNIX : Concepts & Applicationscby S. Das  a4th  bMcGraw - Hill Pub.aNew Delhic2015  a667  aComputers