############################################################ Searchable Keywords: rcs RCS version RCS is a way of controlling version of files by checking them out and then checking them in. If you create a RCS directory in a directory and RCS is compiled or the rpm installed on your machine. You should be able to check in and out the files in that directory. On a linux box I found the best way to check out a file is to use the lock option. co -l filename This puts a lock on the file so that no one else can check it out while you are editing it. It also seems to make it much more easier to check back in. To check a file abck in to RCS after using the -l option use the force option. ci -f filename This will check the file back in but also delete the edited file from the working directory. See also the Solaris notes on RCS in the Solaris notes directory(s)