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While Rice provides a simplified turnin command on its Clear cluster for accessing the repository, you are not required to use it. You can opt to use regular SVN commands to submit your assignment: follow the submitting your homework with SVN commands section. In fact, we highly recommend that you learn to use an SVN client to directly interact with the repository. If you prefer using Git, you can also try using the Subversion client built into Git (git svn).
The turnin program is a script that uses Subversion to enable student homework submissions. It is available only in the Clear cluster.
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