Revision Control System, one of the grand daddies of them all.
I still use it because its simple and does not have a network interface.
- An O’reilly five minute tutorial
- Keywords at babbage.cs.qc.edu
rcs -i creates the repo, rcs -l will turn locking on, ci -l checks the file in. If locking is not on, no version message is prompted. If locking is not on, the file if checked in is deleted from the home directory. rlog will display the version history. So
cat $file | rcs -l | ci
$Header$ is an omnibus with most of what one needs and $Log$ displays the log messages.
I need to experiment with the $Revision$ keyword, can this be subsituted into code.