Show commit hash and last author on each line of a file. See
git blame, which is preferred overgit annotate.git annotateis provided for those familiar with other version control systems. More information: https://git-scm.com/docs/git-annotate.
git annotate {{path/to/file}}
git annotate {{[-e|--show-email]}} {{path/to/file}}
git annotate -L :{{regexp}} {{path/to/file}}