Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!rice!sun-spots-request
From: well!shiva@apple.com (Kenneth Porter)
Newsgroups: comp.sys.sun
Subject: Tape-related commands
Keywords: Miscellaneous
Message-ID: <10047@brazos.Rice.edu>
Date: 18 Jul 90 18:52:06 GMT
Sender: root@rice.edu
Organization: Sun-Spots
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Approved: Sun-Spots@rice.edu
X-Sun-Spots-Digest: Volume 9, Issue 268, message 9

I backup my systems using first "bar Z" to a disk file, then "cp" to
/dev/rst8, and verify the result with "diff -h $barfile $TAPE".  I've
always seen examples of tape copying (to or from disk) using the "dd"
command.  Is "cp" the wrong thing to use?  Can someone offer a brief
tutorial on the subtleties of using ordinary file commands with tape (and
other) devices?

Ken (shiva@well.sf.ca.us)