TY  - BOOK
AU  - Das, Sumitabha 
TI  - Unix concepts and applications
SN  - 74630903
U1  - 005.432U DAS/U 
PY  - 2000///
CY  - New Delhi
PB  - Tata Mc Graw Hill
KW  - OPERATING SYSTEM
KW  - UNIX
ER  -