Suppose I have an executable file a.out(Assume it'll print "hello world") in pwd like /home/My\_folder/Current\_folder/ and I want to run it from My\_folder instead of Current\_folder.
I tried it in this way :

~$ pwd

/home/My\_folder

~$ cd Current\_folder/a.out

~/Current\_folder$ 

There is no show of "hello world" that means a.out is not run at all. 
All I want to run it from My\_folder , not from Current \_folder.