Stash A Single Untracked File

If you want to stash everything in your work tree and untracked files, you can run:

$ 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):

$ git stash -p

Unfortunately, the two don't work together.

$ 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:

$ 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.