My article status for some journal is awaiting decision since 1 week. how long I should wait for the final decision?

Most universities are on holiday break now and begin teaching in a couple of weeks. So, don't expect a reply until then. The journal's webpage usually has an expected time frame, I think it 3-6 weeks is normal for the editor's decision at passing an article onto peer review or desk-rejecting it.

But my paper is already went for minor revision. Now it passed through awaiting recommendation. Now the status is awaiting decision.

Ah, good, congratulations! If you had minor revisions from peer-review than it's most likely a pass and awaiting decision is a formality that they'll do once the semester is back in session. If the journal does online publishing ahead of print, then you'll get a decision on the date it'll be available online.

Thank you

Now the status of my manuscript is awaiting decision for nearly two weeks. Still how long I should wait for the final verdict?

Carry on waiting!

Regardless of whether it has had minor corrections or not, it can and often does take 6 to 8 weeks.
It could also be just a few days.
Be patient. You cannot control the pace of this. It will sort itself out in due course.