git-check-mailmap (1) Linux Manual Page
git-check-mailmap – Show canonical names and email addresses of contacts
Synopsis
git check-mailmap [<options>] <contact>…
Description
For each “Name <user [at] host>” or “<user [at] host>” from the command-line or standard input (when using –stdin), look up the person’s canonical name and email address (see "Mapping Authors" below). If found, print them; otherwise print the input as-is.Options
–stdin- Read contacts, one per line, from the standard input after exhausting contacts provided on the command-line.
