Search notes:

git cat-file

Provide content or type and size information for repository Git objects.

-t: Type information

The type of an object can be determined with -t 
git cat-file -t 3750c6e13c62eb71fc43a9a47c2908118cb16619

-p: Content

The content of an object can be viewed with with -p 
git cat-file -p 3750c6e13c62eb71fc43a9a47c2908118cb16619

See also

git show
git commands

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