Examining File Information

The "-info" function of vutil returns basic information about Vision indexed files. The command syntax is:

vutil  -info  [-kpqx]  [files]

Without files, standard input is read. If the "-p" option is used, then vutil pauses between files and prompts the user for a "return" key. Otherwise all the reports are run together. The "-k" option prints full details about each key, including the exact layout of a multi-segment, or split, key. The "q" option causes vutil to exit if user interaction is required. Each segment is expressed as a pair of numbers--segment size (sz) and the offset (of). The "-x" option causes vutil to report additional information.

This is the basic information provided by "-info":

• comment
• Vision version #
• # of records
• # of deleted records
• file size of segment (name of segment) (Version 4 only)
• total file size of all segments combined (Version 4 only)
• segment (size) (Version 4 only)
• record size (min/max)
• # of keys
• user count

If you request extended information with the "-x" option, you also see:

• for each key: key size (total size and # of segments, if split); key offsets; are duplicates allowed
• block size
• blocks per granule
• tree height (max/min/avg)
• # of nodes
• # of deleted nodes
• total node space
• node space used