The utility vovcleanup is used to clean old log files from /tmp and from the server working directory.

vovcleanup: Usage Message

    vovcleanup  -- Cleanup log files in host and project directory.
                   Rules can be customized in server working

                   An example of cleanup.config.tcl can be found here:

    -v         -- Increase verbosity
    -h         -- This message
    -n         -- Show files to delete, but do not delete them
    -proj      -- Cleanup project log and temporary files. Empty profile and
                  wave subdirectories under SWD/data are also removed.
    -host      -- Cleanup log files in /tmp,/usr/tmp,/var/tmp

    % vovcleanup -host
    % vovcleanup -n -proj
    % vovcleanup -proj

    vovcleandir      -- to cleanup old log files in a directory.
    nc clean         -- to cleanup old files generated by NetworkComputer.
To cleanup old log files in the /tmp and /usr/tmp directory, use:
% vovcleanup -host 
To cleanup log files and cache files in the project configuration directory, use:
% vovcleanup -proj
If you want to first see which files are going to be cleaned up, use the -n option as in:
% vovcleanup -proj -n

Cleaning rules can be modified in cleanup.config.tcl located in the Server Working Directory.