cvs
CVS means Concurrent Version System; it is a version control system which can record the history of your files (usually,but not always, source code). CVS only stores the differences between versions, instead of every version of every fileyou've ever created. CVS also keeps a log of who, when and why changes occurred, among other aspects. CVS is very helpful for managing releases and controllingthe concurrent editing of source files among multipleauthors. Instead of providing version control for a collection of files in a single directory, CVS providesversion control for a hierarchical collection ofdirectories consisting of revision controlled files. These directories and files can then be combined togetherto form a software release. Install the cvs package if you need to use a version control system.
History