Changing committer information for git

git-change-committer.sh

#!/bin/bash
 
git filter-branch --env-filter '

OLD_EMAIL="user1@example.org"
CORRECT_NAME="Rick Grimes"
CORRECT_EMAIL="rick.grimes@zombyworld.net"

if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_COMMITTER_NAME="$CORRECT_NAME"
    export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"
fi
if [ "$GIT_AUTHOR_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_AUTHOR_NAME="$CORRECT_NAME"
    export GIT_AUTHOR_EMAIL="$CORRECT_EMAIL"
fi
' --tag-name-filter cat -- --branches --tags