Wah lao... I know IT people are lazy, but they don't write
things this way. 
Don't slash here and there, don't dot unnecessarily, don't dash
unnecessary, because they each have a different meaning.
Dots don't really matter so much, until you do programming.
Dash means minus...
Slash means divide.
Backward slash and forward slash got different meanings also. Now
know why people hate computer so much? See? 