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Editorial Team
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Asked: 2026-05-23T09:08:36+00:00

I want a way to list all git authors that Is only since a

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I want a way to list all git authors that

  1. Is only since a given commit.
  2. Is unique.

These two are easy, and I’ve seen some solutions to this online, most using git log --format. But none that I saw fits the additional requirements:

  1. Is ordered by commit date. So if John Smith committed before Aaron Meurer, his name should appear before mine (I’m Aaron Meurer).
  2. Respects .mailmap. As far as I can tell, only git shortlog does this, and it gives a bunch of extra stuff that I don’t want. But maybe I’m wrong. Or maybe those of you who are more handy with sed and friends than I am would just use that.

(by the way, how do I make Markdown not restart the numbering?)

I also want a way to order it by last name, but this is relatively easy.

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1 Answer

  1. Editorial Team

    The following format specifiers will solve your second concern:

    %aN: author name (respecting .mailmap)
    %aE: author email (respecting .mailmap)
    %cN: committer name (respecting .mailmap)
    %cE: committer email (respecting .mailmap)

    So discounting the duplicate author part, you want something like 

    git log <commit>.. --format="%aN <%aE>" --reverse

    I suspect you could pipe it through something that does a hash-table based deduplication, a perl oneliner would be trivial:

    git log <commit>.. --format="%aN <%aE>" --reverse | perl -e 'my %dedupe; while (<STDIN>) { print unless $dedupe{$_}++}'
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