How to automatically mount virtual hard disk from anywhere?

Question

I have these 3 files in a folder and they are all located in C:\Max:

attach.bat:

@echo off
cd %~dp0
diskpart /s run.txt

run.txt:

select vdisk file="C:\Max\maximus.vhd" 
attach vdisk

maximus.vhd: a virtual hard disk drive which is mounted via the other 2 files.

How can attach.bat get the current directory location and write it to run.txt?

---

I know how to write to the txt files, but I can't find the current directory. I want to be able to mount this from anywhere on the fly and any directory.

For example:

echo select vdisk file="C:\Max\maximus.vhd" >> C:\Max\run.txt
echo attach vdisk >> C:\Max\run.txt

Answer 1

The solution is using %~dp0 to reference the drive and path of the batch file as Anton Tykhyy suggested.

@echo off
echo select vdisk file="%~dp0maximus.vhd" 1>"%~dp0run.txt"
echo attach vdisk 1>>"%~dp0run.txt"
timeout.exe /t 2 /nobreak
cd /D "%~dp0"
diskpart.exe /s run.txt