Powershell Get-date minus one day...

Here is the delima, I need to get yesterdays day in the format of yymmdd. That's easy if you want todays date:
     get-date -uformat %y%m%d
Great! Now how do I get yesterdays date?
     (get-date).AddDays(-1)
will get me
     Wednesday, June 22, 2011 8:47:51 AM
But, I cant do
     (get-date).AddDays(-1) -uFormat %y%m%d
Nor can I do
     (get-date -uFormat %y%m%d).AddDays(-1)
Nor is there a .Net date/time format of yymmdd. Any suggestions would be appreciated. Thank you!

So if i wanted to get the current date to a format of YYYY.MM.DD, I can get it by
(get-date).ToString("YYYYMMDD") ?? Since i have file names that contain the below i need only to get those with a certain current date embedded.
Update_YYYYMMDDHHMMSSMS.log or Update_2014021802113801.log

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Edited by: Nandan ND on Feb 19, 2008 1:35 PM
Edited by: Nandan ND on Feb 19, 2008 1:36 PM

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razm.datum_sklenitve,
razm.datum_prenehanja,
FROM
zket_zaposlenci zap,
zket_delovna_razmerja razm,
zket_delovne_razporeditve razp,
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Wrote file afiedt.buf
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The database is a datetime field. Then you should be using the appropriate java jdbc time/date methods to access it rather than strings.
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