Add Rename Current File to vim til.

README.md

@@ -32,6 +32,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Preview Buffer](vim/previous-buffer.md)
 - [Quick File Info](vim/quick-file-info.md)
 - [Quick Man Pages](vim/quick-man-pages.md)
+- [Rename Current File](vim/rename-current-file.md)
 - [Split Different](vim/split-different.md)
 
 ## About

vim/rename-current-file.md

@@ -0,0 +1,18 @@
+# Rename Current File
+
+Vim doesn't come with an easy way to rename the existing, current file. The
+closest you will get with a one-off command is `:saveas {new file name}`
+which renames the current buffer, but also leaves you with your old file.
+
+Another approach that you can take is to chain two commands together. You
+can start be *deleting* the current file (don't worry, you've still got the
+file contents in your buffer) and then *saving* the buffer with the new
+name. Like so:
+
+```
+:call delete(expand('%')) | saveas new-file-name.txt
+```
+
+While this seems to do the job well enough, your mileage may vary.
+Consider using a more robust plugin, such as
+[rename.vim](https://github.com/danro/rename.vim/blob/master/plugin/rename.vim).