Allocate Disk Space - Control Files with fallocate | Online Free DevTools by Hexmos

Control disk space allocation with fallocate. Reserve and deallocate file space quickly and easily using the command line. Free online tool, no registration required.

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 MiB:

fallocate {{[-c|--collapse-range]}} {{[-l|--length]}} {{200M}} {{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}}