I was messing around with the different tools to familiarize myself with what is here and i went to see what metagoofil is under backtrack -> info gathering -> searchengine.
after going in it gave me an example:
Example: metagoofil.py -d microsoft.com -l 20 -f all -o micro.html -t micro-files

so i copied and pasted and it came up with this:
/pentest/enumeration/google/metagoofil# metagoofil.py -d microsoft.com -l 20 -f all -o micro.html -t micro-files
bash: metagoofil.py: command not found

After that I ls the dir and came up with this:
/pentest/enumeration/google/metagoofil# ls
COPYING LICENSES README metagoofil.py

I can see that it is there so I am confused. Also I have no idea what this tool does but I thought I would actually learn a bit doing the example, but apparently not.

In advance, thank you for your support.