$ mkdir patches

$ quilt new test.diff
>Patch patches/test.diff is now on top

$ echo foo > foo
$ quilt add foo
> File foo added to patch patches/test.diff

$ quilt files
> foo

$ quilt add "foo bar"
> File foo bar added to patch patches/test.diff

$ quilt files
> foo
> foo bar

$ quilt add "a: b [c]"
> File a: b [c] added to patch patches/test.diff

$ quilt files
> a: b [c]
> foo
> foo bar

$quilt remove "a: b [c]"
> File a: b [c] removed from patch patches/test.diff

$ quilt files
> foo
> foo bar

$quilt remove "foo bar"
> File foo bar removed from patch patches/test.diff

$ quilt files
> foo