000			00369nam a2200145Ia 4500
005			20260205060149.0
008			260111s9999||||xx |||||||||||||| ||und||
082			_a005.43 D26C
100			_aDas,Sumitabha
245		0	_aUnix: concept and applications
260			_aNew Delhi _bTata McGraw-Hill _c2009
300			_a671p.
690			_aOperating system
942			_cBK
999			_c164206 _d164206