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fsutil file

Finds a file by user name (if Disk Quotas are enabled), queries allocated ranges for a file, sets a file's short name, sets a file's valid data length, sets zero data for a file, or creates a new file. Windows commands reference

On Windows

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Windows

from the Windows commands reference, CC BY 4.0
fsutil file [createnew] <filename> <length>
fsutil file [findbysid] <username> <directory>
fsutil file [optimizemetadata] [/A] <filename>
fsutil file [queryallocranges] offset=<offset> length=<length> <filename>
fsutil file [queryextents] [/R] <filename> [<startingvcn> [<numvcns>]]
fsutil file [queryfileid] <filename>
fsutil file [queryfilenamebyid] <volume> <fileid>
fsutil file [queryoptimizemetadata] <filename>
fsutil file [queryvaliddata] [/R] [/D] <filename>
fsutil file [seteof] <filename> <length>
fsutil file [setshortname] <filename> <shortname>
fsutil file [setvaliddata] <filename> <datalength>
Show 27 options
createnewCreates a file of the specified name and size, with content that consists of zeroes.
<length>Specifies the file's valid data length.
findbysidFinds files that belong to a specified user on NTFS volumes where Disk Quotas are enabled.
<username>Specifies the user's user name or logon name.
<directory>Specifies the full path to the directory, for example C:\users.
optimizemetadataThis performs an immediate compaction of the metadata for a given file.
/aAnalyze file metadata before and after optimization.
queryallocrangesQueries the allocated ranges for a file on an NTFS volume. Useful for determining whether a file has sparse regions.
offset=<offset>Specifies the start of the range that should be set to zeroes.
length=<length>Specifies the length of the range (in bytes).
queryextentsQueries extents for a file.
/rIf <filename> is a reparse point, open it rather than its target.
<startingvcn>Specifies first VCN to query. If omitted, start at VCN 0.
<numvcns>Number of VCNs to query. If omitted or 0, query until EOF.
queryfileidQueries the file ID of a file on an NTFS volume.
<volume>Specifies the volume as drive name followed by a colon.
queryfilenamebyidDisplays a random link name for a specified file ID on an NTFS volume. Since a file can have more than one link name pointing to that file, it is not guaranteed which file link will be provided as a result of the query for the file name.
<fileid>Specifies the ID of the file on an NTFS volume.
queryoptimizemetadataQueries the metadata state of a file.
queryvaliddataQueries the valid data length for a file.
/dDisplay detailed valid data information.
seteofSets the EOF of the given file.
setshortnameSets the short name (8.3 character-length file name) for a file on an NTFS volume.
<shortname>Specifies the file's short name.
setvaliddataSets the valid data length for a file on an NTFS volume.
<datalength>Specifies the length of the file in bytes.
setzerodataSets a range (specified by offset and length) of the file to zeroes, which empties the file. If the file is a sparse file, the underlying allocation units are decommitted.

See also

fsutil