cygwin - bash in windows error? -

I'm trying to execute a very simple script with Sagvin:

  #! / Bin / bash \ n "Hi" \ n   
 with  cygwinpath \ bin \ bash.exe /cygdrive/c/my_path/test.bash   
 but it says  
  /cygdrive/c/my_path/test.bash: line 1: #! / Bin / bash: No such file or directory   
 However, it still prints 'hi'.  
 Why is it, and how to fix it?  
 Thank you.   
 
 
 The first line of your script just  #! / Bin / bash  and no  #! / Bin / bash \ n   
 The code is still executing because the title  #! / Bin / bash  specifies a shell, and there is a command at  echo "hi" \ N  terminal  
 For the sake of your problem, let me run the following path in the signin terminal There are no issues using the following:  
  / cygdrive / c /