"yesterdate" function?

[Andrew Beattie]

In article <19100001 at hpficad.HP.COM> mcr at hpficad.HP.COM (Matt Reprogle) writes:
>
>I need a way to get yesterday's date in YYMMDD format in a Unix script 

Yes, I posted a script which does this a few months ago - If enough other 
people tell me that they missed it then I will post again.
(I'm mailing you anyway)
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