Is there a way to refresh a Finder file listing? I love my Mac and how things generally just work. Now and again, however, one finds a few annoyances. My latest one is that I cannot find a refresh button anywhere to update a file listing in a Finder window.

Please note that I am aware that refreshing is generally not needed as new files are automatically added to Finder windows. In my case I have a NAS on my network, and to update a file listing in a NAS folder I currently need to change directory to somewhere else and then back again to see new files.

Is there a way to request an updated file listing in a Finder window?
Yes!
A simple AppleScript can instruct the Finder to tell its front window to update every item. Such an AppleScript can be saved as an Application and then dragged to the Finder toolbar to give you a refresh button.
The AppleScript you need is quite simple:
 tell application &quot;Finder&quot; to tell front window to update every item

Paste the above text in Script Editor (in the Utilities folder), then use Export -&gt; Application. THAT executable should be dragged, with CommandOption, to the Finder toolbar (that is, the top bar, not the sidebar).
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