Reverting to an older revision for a single file

If I have a project and I want to revert back to an older version of one file,
what is the best way to do that?

Here's a specific example:

Let's say the head revision of my project is at 100, and I want to get revision
90 of file.c and check that in at the head and have version 101. I tried this:

svn up
svn -r90 up file.c
svn ci

The ci silently did nothing at all.

What I had to do to get this to work was:

svn up
svn -r90 up file.c
mv file.c file.c.90
svn up
mv file.c.90 file.c
svn ci

Is that the proper way to do this, or is there a better way?

TIA!
-larry

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Received on Thu Apr 5 22:33:23 2007