Migrate repos from Bitbucket to Github (only Master branch)

bitbucket_to_github.sh

#!/bin/bash

# verify for two script params
if [ "$#" -ne 2 ]; then
  echo "Need two arguments."
  echo "Usage: ./bitbucket_to_github.sh <repo_name> <bitbucket_url>"
  echo ""
  echo "Prerequisits:"
  echo "* Public Key authentication for both Github & Bitbucket already setup."
  echo "* Update this script with your Github Username & API Token."
  exit 1
fi

USERNAME=github_user_name
API_TOKEN=489_github_api_token_5268

REPO_NAME=$1
BB_URL=$2

echo ""
echo "Cloning the repo ..."
git clone --bare $BB_URL 
pushd $REPO_NAME
git remote rename origin bitbucket

echo ""
echo "Create repo: $REPO_NAME in github ..."
curl --request POST \
  --url https://api.github.com/user/repos \
  --user $USERNAME:$API_TOKEN \
  --header 'cache-control: no-cache' \
  --header 'content-type: application/json' \
  --data '{"name": "'"$REPO_NAME"'", "private": true}'

echo ""
echo "Pushing to Github ..."
git remote add origin git@github.com:$USERNAME/$REPO_NAME.git
git push -f origin master
git remote rm bitbucket

popd

Technically not just bitbucket, the repo URL can be any Git server. Feel free to modify this script to make it better. One can also eliminate the repo name input as well, by extracting it from the repo URL.