file called HEAD in your work tree, `git diff HEAD` is ambiguous, and
you have to say either `git diff HEAD --` or `git diff -- HEAD` to
disambiguate.
+
+ * Because `--` disambiguates revisions and paths in some commands, it
+ cannot be used for those commands to separate options and revisions.
+ You can use `--end-of-options` for this (it also works for commands
+ that do not distinguish between revisions in paths, in which case it
+ is simply an alias for `--`).
+
When writing a script that is expected to handle random user-input, it is
a good practice to make it explicit which arguments are which by placing
things:
+
--------------------------------
-$ git checkout -- *.c
-$ git checkout -- \*.c
+$ git restore *.c
+$ git restore \*.c
--------------------------------
+
The former lets your shell expand the fileglob, and you are asking
http://marc.info/?l=git&m=119150393620273 for further
information.
+Some other commands that also work on files in the working tree and/or
+in the index can take `--staged` and/or `--worktree`.
+
+* `--staged` is exactly like `--cached`, which is used to ask a
+ command to only work on the index, not the working tree.
+
+* `--worktree` is the opposite, to ask a command to work on the
+ working tree only, not the index.
+
+* The two options can be specified together to ask a command to work
+ on both the index and the working tree.
+
GIT
---
Part of the linkgit:git[1] suite