mistake, and gets it back from the index.
------------
-$ git checkout master
-$ git checkout master~2 Makefile
+$ git checkout master <1>
+$ git checkout master~2 Makefile <2>
$ rm -f hello.c
-$ git checkout hello.c
+$ git checkout hello.c <3>
+
+<1> switch branch
+<2> take out a file out of other commit
+<3> or "git checkout -- hello.c", as in the next example.
------------
If you have an unfortunate branch that is named `hello.c`, the