Install mercurial and hg-git

sudo apt-get install mercurial

sudo apt-get install mercurial-git

Note: The version of mercurial should be >= 2.8.

If the default version of mercurial in apt-get is < 2.8. You can install using pip

sudo pip install mercurial –upgrade

You need to create a repo on Github.com

Clone your bitbucket repo

hg clone https://hbhzwj@bitbucket.org/hbhzwj/sadit hg-repo

Convert hg repo to git repo

Hg-Git can also be used to convert a Mercurial repository to Git. You can use a local repository or a remote repository accessed via SSH, HTTP or HTTPS. Use the following commands to convert the repository

$ mkdir git-repo; cd git-repo; git init; cd ..
$ cd  hg-repo
$ hg bookmarks hg
$ hg push ../git-repo

The hg bookmark is necessary to prevent problems as otherwise hg-git pushes to the currently checked out branch confusing Git. This will create a branch named hg in the Git repository. To get the changes in master use the following command (only necessary in the first run, later just use git merge or rebase).

$ cd git-repo
$ git checkout -b master hg

Push the Git repo to Github Server

cd git-repo;

git remote add origin <github-url>;

git push -u origin master;

cd ..;

I also write a script to do this automatically.