Adding additional information and link (#21786)

guide/english/bash/bash-mv/index.md

@@ -21,6 +21,7 @@ The first argument is the file you want to move, and the second is the location
 Commonly used options:
 - `-f` to force move them and overwrite files without checking with the user.
 - `-i` to prompt confirmation before overwriting files.
+- `-n` do not overwrite an existing file
 
 ### Warning
 
@@ -28,3 +29,4 @@ This command is capable of modifying many files at once with ease.  This can be
 
 ### More Information:
 * [Wikipedia](https://en.wikipedia.org/wiki/Mv)
+* [Man pages](http://man7.org/linux/man-pages/man1/mv.1.html)