Extra files
/usr/local/extrafiles is a directory on the cfengine hub to which teaching staff have full access. The contents of this directory are synch'ed by cf-agent to the same-named directory on all user-loginable New World computers (i.e., lab computers, login servers and VLAB servers).
Additionally, all user-loginable computers have the following two files installed in /etc/profile.d:
extrafiles.shextraprofile.sh
The first, extrafiles.sh, configures two environment paths so users automatically have /usr/local/extrafiles/bin in their PATH and so that their PYTHONPATH is set to /usr/local/extrafiles/lib.
The second, extraprofile.sh, checks for the presence of /usr/local/extrafiles/extraprofile.sh and, if found, executes it in the environment of the current shell thus allowing teaching staff to further customise the execution environment of users without CSG's involvement.