DOT-Files/Gentoo/gentooamd/home/user/.tldrc/tldr/pages/linux/fallocate.md

fallocate

Reserve or deallocate disk space to files. The utility allocates space without zeroing. More information: https://manned.org/fallocate.

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

fallocate {{[-l|--length]}} 700M {{path/to/file}}

• Shrink an already allocated file by 200 MB:

fallocate {{[-c|--collapse-range]}} {{[-l|--length]}} 200MB {{path/to/file}}

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

fallocate {{[-c|--collapse-range]}} {{[-o|--offset]}} 100M {{[-l|--length]}} 20M {{path/to/file}}