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Add Extend Git With Custom Commands as a git TIL

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2024-02-19 18:04:45 -06:00
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README.md
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For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186). For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
_1370 TILs and counting..._ _1371 TILs and counting..._
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- [Dry Runs in Git](git/dry-runs-in-git.md) - [Dry Runs in Git](git/dry-runs-in-git.md)
- [Exclude A File From A Diff Output](git/exclude-a-file-from-a-diff-output.md) - [Exclude A File From A Diff Output](git/exclude-a-file-from-a-diff-output.md)
- [Excluding Files Locally](git/excluding-files-locally.md) - [Excluding Files Locally](git/excluding-files-locally.md)
- [Extend Git With Custom Commands](git/extend-git-with-custom-commands.md)
- [Find And Remove Files That Match A Name](git/find-and-remove-files-that-match-a-name.md) - [Find And Remove Files That Match A Name](git/find-and-remove-files-that-match-a-name.md)
- [Find The Date That A File Was Added To The Repo](git/find-the-date-that-a-file-was-added-to-the-repo.md) - [Find The Date That A File Was Added To The Repo](git/find-the-date-that-a-file-was-added-to-the-repo.md)
- [Find The Initial Commit](git/find-the-initial-commit.md) - [Find The Initial Commit](git/find-the-initial-commit.md)

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# Extend Git With Custom Commands
I recently learned about the [`git
absorb`](https://github.com/tummychow/git-absorb) command. It is interesting in
its own right, but I bring it up because it isn't a command that is built in to
git. When I was looking at the installation instructions for it, it didn't say
anything about how to _register_ the command with `git`.
How is git supposed to know about it? How do you extend git with custom
commands?
What I learned exploring those questions is that `git` will execute any command
on your _path_ with a `git-<command>` naming convention.
So, if I create a executable binary called `git-taco`, add it to my path, and
then run `git taco` (notice, no dash when I run it), `git` will run my custom
binary.
In the same way, if you download `git-absorb` and add it to your path, `git`
will run it for you when you enter `git absorb ...`.
You can even type something like `where git-` and then hit tab to prompt your
shell to display a list of a varity of other `git` commands, most of which
probably ship with `git`.
[source](https://twitter.com/jbrancha/status/1756361704160530555)