I used CVS for some years now and recently switched to Subversion. I was surprised that the commands for ci, co, etc. are identical to the cvs commands -- no re-learning: 
$ cvs ci
[...]
$ svn ci
[...]

[download]
But, there are additional commands like svn mv. The only difference I noted (but I use SVN/CVS only as an "intelligent backup", no more advanced things) is the way you create a new repository, but there's an excellent quickstart guide (link lost). I couldn't imagine developing without using some kind of version control system -- it's much easier to use than cp/scp/tar/rsync :)

In reply to Re^3: What's your prefered revision control system? by iblech
in thread What's your prefered revision control system? by theonetwo

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