How do I install ImageMagick for MinGW on Windows 7?

Well... I have already installed MinGW32 (I don't know the version - installed in a folder named Git 2.4.4.2) on Windows 7, and I want to install ImageMagick to run some scripts like the follow:

echo " Creating different dimensions of "$1" ..."convert $1 -resize 67% dir1/$1convert $1 -resize 50% dir2/$1convert $1 -resize 33% dir3/$1mv $1 dir0/$1echo " Done"

As far as I searched on Google there is not a clear detailed guide how to install it. I downloaded this ImageMagick version: ImageMagick-i686-pc-mingw32.tar.gz

From the official ImageMagick site guide I go up to the first step Unpack the distribution with this command:

tar xvzf ImageMagick-i686-pc-mingw32.tar.gz

and I get as result a folder ImageMagick-6.8.5.So far so good. But the next step Next configure and compile ImageMagick:

cd ImageMagick-6.8.5./configuremake

I get bash: ./configure: No such file or directory.

Here is my photo:

This is ls -l results:

How can I fix this problem?

I have only installed MinGw32, not MSYS (as I read in a not so detailed guide).