<object>
Indicates the object name for any type of object.
<blob>
Indicates a blob object name.
<tree>
Indicates a tree object name.
<commit>
Indicates a commit object name.
<tree-ish>
Indicates a tree, commit or tag object name. A command that
takes a <tree-ish> argument ultimately wants to operate on a
<tree> object but automatically dereferences <commit> and
<tag> objects that point at a <tree>.
<commit-ish>
Indicates a commit or tag object name. A command that takes a
<commit-ish> argument ultimately wants to operate on a
<commit> object but automatically dereferences <tag> objects
that point at a <commit>.
<type>
Indicates that an object type is required. Currently one of:
blob, tree, commit, or tag.
<file>
Indicates a filename - almost always relative to the root of
the tree structure GIT_INDEX_FILE describes.
