Advantages
In single-user scenarios, such as server configuration files or automation scripts, RCS may still be the preferred revision control tool as it is simple and no central repository needs to be accessible for it to save revisions. This makes it a more reliable tool when the system is in dire maintenance conditions. Additionally, the saved backup files are easily visible to the administration so the operation is straightforward. However, there are no built-in tamper protection mechanisms (that is, users who can use the RCS tools to version a file also, by design, are able to directly manipulate the corresponding version control file) and this is leading some security conscious administrators to consider client/server version control systems that restrict users' ability to alter the version control files.
Read more about this topic: Revision Control System
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