Rename an email address on the current branch

git-rewrite-email

#!/bin/sh
if [ $# != 2 ]; then
   echo 1>&2 "Usage: $0 <old-email> <new-email>"
   exit 1
fi
export OLD_EMAIL="$1"
export NEW_EMAIL="$2"
git filter-branch -f --env-filter \
'if [ "$GIT_AUTHOR_EMAIL" = "$OLD_EMAIL" ]; then 
export GIT_AUTHOR_EMAIL="$NEW_EMAIL"; fi
if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]; then 
export GIT_COMMITTER_EMAIL="$NEW_EMAIL"; fi'