1.UNIX: Concepts & Applications, Sumitava Das, TMH
2.Your UNIX –The Ultimate Guide, Sumitava Das, TMH
3.Design of UNIX Operating System,Maurice Bach, PHI
4.Learning the UNIX operating Systems,Peek,SPD/O’REILLY
5.Mastering UNIX/LINUX/Solaris Shell Scripting, Randal k. Michael, Wiley Dreamtech
6.Unix,Xavier,Scitech
7.Learning the Vi Editor,Lamb, SPD/O’REILLY