The "size" option of vutil gives summary disk usage information for a set of Vision files. This option is useful for quickly determining which files are occupying the most disk space and for spotting files that contain a large amount of unused space. The command is:
vutil -size [files]
If no files are requested, then the standard input is read for the list of files. The printed information includes the total size of the file, the number of records, and the number of deleted records the file contains. Also given is the percentage of records in the file that are not deleted records. This information is useful when you are trying to find candidates to rebuild when disk space gets tight. Non-Vision files are ignored by this command.