Finding part with string.match?

I need to find a part with nuke in it's name, any help?

If you know what the part's parent is going to be, iterate through its children and use string.match on each of their names

for i,v in pairs(Parent:GetChildren()) do --i is index (the child's number in the hierarchy) and v is value(the part)
	if v.Name:lower():match("nuke") then --if the lowercase version of the name has nuke in it then
		--code here
	end
end

replace 'Parent' by the part's parent location in the game hierarchy