debian equivalent of rc.local

["Keith S Marshall" <kmarshall@commercenti.com>]

I was wondering what the debian equivalent to rc.local is.  I want to put
this setting

hdparm -c 1 -d 1 /dev/hda

 which speeds up hard disk access in one of the start up files and was under
the impression that on non debian systems it would go into the bottom of
rc.local

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