How do I rewrite committer names in a git repository? [duplicate]

Answer 1

The ProGit book has an example of doing this that should probably work for you.

$ git filter-branch --commit-filter '
    if [ "$GIT_AUTHOR_EMAIL" = "schacon@localhost" ];
    then
            GIT_AUTHOR_NAME="Scott Chacon";
            GIT_AUTHOR_EMAIL="schacon@example.com";
            git commit-tree "$@";
    else
            git commit-tree "$@";
    fi' HEAD