ntfstruncate - truncate a file on an NTFS volume

NAME SYNOPSIS DESCRIPTION OPTIONS EXAMPLES BUGS AUTHORS AVAILABILITY SEE ALSO

NAME

ntfstruncate − truncate a file on an NTFS volume

SYNOPSIS

ntfstruncate [options] device file [attr-type [attr-name]] new-length

DESCRIPTION

ntfstruncate truncates (or extends) a specified attribute belonging to a file or directory, to a specified length.

Below is a summary of all the options that ntfstruncate accepts. Nearly all options have two equivalent names. The short name is preceded by − and the long name is preceded by −−. Any single letter options, that don’t take an argument, can be combined into a single command, e.g. −fv is equivalent to −f −v. Long named options can be abbreviated to any unique prefix of their name.
−f, −−force

This will override some sensible defaults, such as not using a mounted volume. Use this option with caution.

−h, −−help

Show a list of options with a brief description of each one.

−l

Display licensing information.

−n, −−no-action

Simulate the truncation without actually write to device.

−q, −−quiet

Suppress some debug/warning/error messages.

−v, −−verbose

Display more debug/warning/error messages.

−V, −−version

Show the version number, copyright and license of ntfstruncate.

attr-type

Define a particular attribute type to be truncated (advanced use only). By default, the unnamed $DATA attribute (the contents of a plain file) will be truncated. The attribute has to be specified by a number in decimal or hexadecimal :

attr-name

Define the name of the particular attribute type to be truncated (advanced use only).

new-length

Specify the target size of the file. It will be rounded up to a multiple of the cluster size. A suffix of K, M, G, T, P or E may be appended to mean a multiplicative factor of a power of 1000. Similarly a suffix of Ki, Mi, Gi, Ti, Pi or Ei may be appended to mean a multiplicative factor of a power of 1024.