I have two repositories, and I need to copy whole of one onto the other empty one which has different access levels from the first one. The copy and the mother repository should not be linked together.
I am new to git and it would be awesome if someone could help me with this.
See https://help.github.com/articles/duplicating-a-repository
Short version:
In order to make an exact duplicate, you need to perform both a bare-clone and a mirror-push:
mkdir foo; cd foo
# move to a scratch dir
git clone --bare https://github.com/exampleuser/old-repository.git
# Make a bare clone of the repository
cd old-repository.git
git push --mirror https://github.com/exampleuser/new-repository.git
# Mirror-push to the new repository
cd ..
rm -rf old-repository.git
# Remove our temporary local repository
NOTE: the above will work fine with any remote git repo, the instructions are not specific to github
The above creates a new remote copy of the repo. Then clone it down to your working machine.