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008 241226s9999 xx 000 0 und d
020 _a0
082 _bPRA
100 _aPrata Stephen
245 0 _aAdvanced unix :a programmer guide
260 _aNew Delhi :
_bBpb Publication,
_c2021.
350 _a360
650 _aInformation Technology
999 _c172875
_d172875