How to run .sh file on Windows 7 through Cygwin?

I have to use a package on my Windows 7 OS but the package comes only with the `.sh` file so I have to use bash and hence Cygwin to run on my machine. But I am kinda familiar with Windows but completely new to Cygwin and shell programming. Suppose I have a `run.sh` file in `/cygdrive/c/Users/myUserName/Desktop/software/myPackage/bin`, how should I run it in Cygwin? Downloaded Cygwin and in the terminal I navigate to that directory and type `run.sh` enter but it complains ``` $ run.sh -bash: run.sh: command not found ``` I am asking this because I generally understand in Windows you can just navigate to the directory and run the `.bat` file and that's it? How does this work for Cygwin? Any suggestion are highly appreciated!