Update cheatsheets

git-cat-file

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# git cat-file
+
+> Provide content or type and size information for Git repository objects.
+> More information: <https://git-scm.com/docs/git-cat-file>.
+
+- Get the [s]ize of the HEAD commit in bytes:
+
+`git cat-file -s HEAD`
+
+- Get the [t]ype (blob, tree, commit, tag) of a given Git object:
+
+`git cat-file -t {{8c442dc3}}`
+
+- Pretty-[p]rint the contents of a given Git object based on its type:
+
+`git cat-file -p {{HEAD~2}}`