# git-check-mailmap(1) Manual Page

## NAME

git-check-mailmap - Show canonical names and email addresses of contacts

## SYNOPSIS

    git check-mailmap [<options>] <contact>…

## DESCRIPTION

For each “Name <user@host>”, “<user@host>”, or “user@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.

--mailmap-file=<file>

  In addition to any configured mailmap files, read the specified mailmap file. Entries in this file take precedence over entries in either the default mailmap file or any configured mailmap file.

--mailmap-blob=<blob>

  Like `--mailmap-file`, but consider the value as a reference to a blob in the repository. If both `--mailmap-file` and `--mailmap-blob` are specified, entries in `--mailmap-file` will take precedence.

## OUTPUT

For each contact, a single line is output, terminated by a newline. If the name is provided or known to the mailmap, “Name <user@host>” is printed; otherwise only “<user@host>” is printed.

## CONFIGURATION

See `mailmap.file` and `mailmap.blob` in git-config(1) for how to specify a custom `.mailmap` target file or object.

## MAPPING AUTHORS

See gitmailmap(5).

## GIT

Part of the git(1) suite