Version control systems record and store multiple changes to files, so you can revert to a specific change point in the file or project's history.
What are the command equivalents in these three version control systems? Check out this list, and master the commands in all of these systems.
Apache Subversion 1.9 has been released. This blog post covers summary of the release notes and gives considerations on upgrading.
A blog post describing how caching of credentials can benefit Subversion performance over 7 times.
A blog post about the downfalls of hosting source code of all your projects under one source code repository.