Checking whether RCS is in your path (Unix Only)

The filebrowser example comes with an RCS repository. This tutorial relies on RCS 5.7 which is supplied together with the SNiFF+ package and is installed from there.
To check whether the correct version of RCS is in your path:

Open a Unix shell.
Enter

% rcs -V1 at the command prompt.
You will receive one of the following outputs:

rcs error: -V1 out of range 3..5
This shows that the correct version of RCS is installed.

rcs error: Unknown option: -V1
This shows that an old, unusable version of RCS is installed. If you get this output, please install RCS 5.7 to execute the version control steps in the next chapter.