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40 lines
821 B
Markdown
40 lines
821 B
Markdown
# truncate
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Shrink or extend the size of a file to the specified size.
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## TL;DR
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```sh
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# Empty the contents of files.
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truncate -s 0 'file'
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# Set the size of an existing file.
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# if the file does not exist, create it anew of the specified size.
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truncate -s 100 'file'
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truncate --size 5k 'file'
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truncate --size 10G 'file'
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# Extend a file's size by 50 MiB and fill it with holes.
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# Holes read as zero bytes.
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truncate --size +50M 'file'
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# Shrink a file by 2 GiB.
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# Removes data from the end of file.
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truncate --size -2G 'file'
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# Empty the file's content, but do not create it if existing.
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truncate --no-create --size 0 'file'
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```
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## Further readings
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- [GNU's documentation]
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## Sources
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- [cheat.sh]
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<!-- -->
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[cheat.sh]: https://cheat.sh/truncate
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[gnu's documentation]: https://www.gnu.org/software/coreutils/truncate
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