-u::
--update::
- Only match <pathspec> against already tracked files in
- the index rather than the working tree. That means that it
- will never stage new files, but that it will stage modified
- new contents of tracked files and that it will remove files
- from the index if the corresponding files in the working tree
- have been removed.
+ Update the index just where it already has an entry matching
+ <pathspec>. This removes as well as modifies index entries to
+ match the working tree, but adds no new files.
+
-If no <pathspec> is given, default to "."; in other words,
-update all tracked files in the current directory and its
-subdirectories.
+If no <pathspec> is given, the current version of Git defaults to
+"."; in other words, update all tracked files in the current directory
+and its subdirectories. This default will change in a future version
+of Git, hence the form without <pathspec> should not be used.
-A::
--all::
- Like `-u`, but match <pathspec> against files in the
- working tree in addition to the index. That means that it
- will find new files as well as staging modified content and
- removing files that are no longer in the working tree.
+ Update the index not only where the working tree has a file
+ matching <pathspec> but also where the index already has an
+ entry. This adds, modifies, and removes index entries to
+ match the working tree.
++
+If no <pathspec> is given, the current version of Git defaults to
+"."; in other words, update all files in the current directory
+and its subdirectories. This default will change in a future version
+of Git, hence the form without <pathspec> should not be used.
-N::
--intent-to-add::