Nathan Hartman wrote on Tue, 14 Aug 2018 12:36 -0400: > Suppose I modified filename.c. Can I revert, but instead of throwing away > my changes, revert to a separate file like filename.c.old and keep my > modified filename.c for comparison in my favorite tool?
svn cat filename.c@BASE > filename.c.old but a better way to achieve what you're trying to do is to use a custom diff-cmd.