OT: Unix Version Control

Slightly off-topic, but relevant to anyone who uses bespoke scripts on Unix.

I've got a bunch of SQL, ksh and perl scripts that I want to organise, archive and delete where obsolete. I'd like to get these into some sort of version control repository (rather than the .old .bkp .date etc "system" currently employed) and I was wondering what systems (if any) you use. SCCS? RCS? CVS?
I'd like it to be scriptable, and easily portable as I carry scripts from site to site.

Recommendations/experiences/gotchas gratefully received.

Ray

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