I'm new in UNIX learning. Can you please guide me. How to get start and then step by step things in Unix.
(I know all basic commands)
I'm new to Unix. Which books should I read? - The UNIX and Linux Forums
all you need is practice practice pratice
Practice what?
practice all the commands. check the man page and familiar with all the arguments and its usage.
solve the others problem ( monitor and reply for others problem in this forum )
Also watch and understand the solutions which is posted in this forum.
Look i know all the basic commands and i had practice on it. now i don't know what to do next. i read some thing but still confusion is there that from where to start? i want to start coding and all. Now i hope you understand what i want to ask.
You have already started !!
All you need is to have patience - This is not a subject to learn in a day !!
Just keep looking and understand what problems other's are facing and try to come up with the solutions....That's what I am doing...The best way to learn...!!
Try to take some assignments on your own by trying some simple programs which you must have done in C, If you are working in any organisation then think of some task which could be automated with the shell.But be sure not to automate every task !! Otherwise your manager may think of your release 
( My personal experiance )