# truncate

> Shrink or extend the size of a file to the specified size.

- Set a size of 10 GB to an exsting file, or create a new file with the specified size:

`truncate -s {{10G}} {{filename}}`

- Extend the file size by 50M, fill with holes (which reads as zero bytes):

`truncate -s +{{50M}} {{filename}}`

- Shrink the file by 2GiB, by removing data from the end of file:

`truncate -s -{{2G}} {{filename}`
