RCS stands for Revision Control System.
You may have never heard it, because it's more than a quarter-century old;
a paper
describing it was published in 1985.
Although its commands are still available in most Unix distributions
and it's one of the easiest systems to use in a single-user scenario,
it is clearly showing its age when compared to more modern systems.
Here is how to move an existing project managed with RCS to the
21st century and Git ,
while preserving all its history.
