hi this is mohanraj,i had completed my MCA(2007 passed out) and my RHCE .I'm in dilema whether to go in shell scripting or system admin.or whether to study some programming languages.so plz take this as a serious message an reply me.plz do favourable needs

Well, you will not make it very far in UNIX System administration without knowing Shell scripting. You will also do well with UNIX admin with C/C++ under your belt - or perhaps some python or maybe preferably Perl (depending on who you ask).

I would say with Microsoft System Administrator and Red Hat Certified Engineer under your belt - probably System Admin (or to start, System Analyst or Systems Engineer) is the way to go. A lot of businesses are looking for people that can bridge the gap between windows and *nix.