00446nam a2200169Ia 4500003000400000005001700004008004100021020001500062040000900077082001900086100002000105245005300125250001200178260006400190300000900254650001300263OSt20201009100541.0190216s9999||||xx |||||||||||||| ||und||  a0074630903  coclc  a005.432bDAS/U  aDas, Sumitabha  0aUnix- Concepts And Applications /cSumitabha Das  a2nd Ed.  bTata Mcgraw Hill Publishing Company Ltd,c2001.aNew Delhi:  a565p  aComputer