bash <(curl -# -L https://gist.github.com/amercier/10246387/raw) <old url> <new url>

git-migrate.sh

#!/usr/bin/env bash

if [ "$1" == "" ] || [ "$2" == "" ]; then
  echo "Syntax: $0 <old url> <new url>" 2>&1
  exit 1
fi

echo "$1 => $2"

echo "Looking for .git/config files in $(readlink -f .)..."

find . -type f -name config | egrep '/.git/config$' | while read f; do
  count=$(grep "$1" "$f" 2>/dev/null | wc -l)
  if [ "$count" != "0" ]; then
    echo "   Found $1 in $f"
    cat "$f" | sed -i "s/$(echo $1 | sed 's/\//\\\//g')/$(echo $2 | sed 's/\//\\\//g')/g" "$f"
    grep "$2" "$f" >/dev/null 2>&1 && echo "   ✔ Patched successfully" || echo "   ✘ Failed patching $f"
  else
    echo "   $1 not found in $f"
  fi
done

echo Done