fallocate

Reserve or deallocate disk space to files.

The utility allocates space without zeroing.

=> More information.

• Reserve a file taking up 700 MiB of disk space:

fallocate --length {700M} {path/to/file}

• Shrink an already allocated file by 200 MiB:

fallocate --collapse-range --length {200M} {path/to/file}

• Shrink 20 MB of space after 100 MiB in a file:

fallocate --collapse-range --offset {100M} --length {20M} {path/to/file}

Copyright © 2014—present the tldr-pages team and contributors.

This work is licensed under the Creative Commons Attribution 4.0 International License (CC-BY).

=> CC-BY