Add Stash A Single Untracked File as a git til

git/stash-a-single-untracked-file.md

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+# Stash A Single Untracked File
+
+If you want to stash everything in your work tree and untracked files, you can
+run:
+
+```bash
+$ git stash -u
+```
+
+If you want a bit more control over what gets stashed from the work tree, you
+can interactively stash with `--patch` (or `-p`):
+
+```bash
+$ git stash -p
+```
+
+Unfortunately, the two don't work together.
+
+```bash
+$ git stash -u -p
+Can't use --patch and --include-untracked or --all at the same time
+```
+
+So, if you'd like to stash a specific untracked file, you can instead formulate
+a command like the following:
+
+```bash
+$ git stash -u -- <name-of-untracked-file>
+```
+
+This will stash just the specified untracked file and leave the rest of them as
+they are.
+
+I found this useful when trying to test the setup of a new library. There was
+an extra new file that I didn't think I needed. Stashing it temporarily gets it
+out of the way without losing it.