Out of a git console: how do I execute a batch file and then return to git console?

Question

I have a small utility script called clear.bat that does some housekeeping work on my sources.

It is a .bat file so that I could easily double-click it in Windows Explorer.

Sometimes, I find it more handy to execute it from my Git bash (msysgit, if this matters).

To do this, I type

cmd clear.bat exit 

cmd turns my Git bash into a normal cmd window where I could easily execute my batch. When I type exit, the cmd environment is terminated and I'm back in my Git bash.

Could this be achieved in an easier way?

I tried cmd /C clean.bat since the docs say

Syntax       CMD [charset] [options]        CMD [charset] [options] [/c Command]         CMD [charset] [options] [/k Command]   Options       /C     Run Command and then terminate     /K     Run Command and then return to the CMD prompt.           This is useful for testing, to examine variables 

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Edit:
Just noticed that the post is broken.

What I want is to execute clean.bat from within the Git bash without having to type the three commands above (cmd, clear.bat, exit). I just want to execute the .bat file from within my Git bash. Obvious way would be to create a separate .sh file that does the same work but this will lead to double code.

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Edit 2: When I execute cmd /C clean.bat, the Git bash turns into a plain CMD environment and only displays the prompt. The file clean.bat does not get executed. It's the same as if I just type cmd.

Also, adding a /debug switch does literally nothing. Seems like only cmd gets evaluated and all further parameters are getting ignored.

Answer 1

After playing around a bit more, I found the solution myself:

cmd "/C clean.bat" 

does the trick. But I got no clue, why...