tldr/pages/common/truncate.md

21 lines
578 B
Markdown

# truncate
> Shrink or extend the size of a file to the specified size.
> More information: <https://www.gnu.org/software/coreutils/manual/html_node/truncate-invocation.html>.
- 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}}`
- Empty the file's content:
`truncate -s 0 {{filename}}`