How to Change Git Authors in Previous Commits

Change Git Author Information

Use the following command to change author information in previous commits:

git filter-branch --env-filter '
# Define the old and new author information
WRONG_EMAIL="[email protected]"
NEW_NAME="my new name"
NEW_EMAIL="[email protected]"

# Update committer information
if [ "$GIT_COMMITTER_EMAIL" = "$WRONG_EMAIL" ]
then
    export GIT_COMMITTER_NAME="$NEW_NAME"
    export GIT_COMMITTER_EMAIL="$NEW_EMAIL"
fi

# Update author information
if [ "$GIT_AUTHOR_EMAIL" = "$WRONG_EMAIL" ]
then
    export GIT_AUTHOR_NAME="$NEW_NAME"
    export GIT_AUTHOR_EMAIL="$NEW_EMAIL"
fi
' --tag-name-filter cat -- --branches --tags

This command will:

1. Filter through all branches and tags
2. Update both committer and author information
3. Preserve tag names
4. Apply changes to all matching commits