00402nam a2200133Ia 4500008004100000041000800041082001600049100003700065245010000102250000600202260003800208300001300246650000900259210716s1990    xx            000 0 und d  aeng  a005.43 ASHR  aAshley, Ruth; Fernandez, Judi N.  aTeach yourself unix: including languages and power tools.bIncluding languages and power tools.  a1  aNew DelhibBPB Publicationsc1990  axiii,333  aUnix