Same cause as is mentioned here Re: Getting file properties returns 1970 modify time.

Addendum: Not everything that's a not-directory is a file (named pipe, socket, char or block device, et al depending on your OS) . . .

In reply to Re: The -d switch isn't working as I expected it to (test to see if its a directory) by Fletch
in thread The -d switch isn't working as I expected it to (test to see if its a directory) by heigold1

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