2018-07-15 10:24:57 +01:00
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# truncate
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> Shrink or extend the size of a file to the specified size.
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2021-04-01 16:54:26 +01:00
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> More information: <https://www.gnu.org/software/coreutils/truncate>.
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2018-07-15 10:24:57 +01:00
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2021-05-20 21:13:41 +01:00
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- Set a size of 10 GB to an existing file, or create a new file with the specified size:
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2018-07-15 10:24:57 +01:00
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2021-05-24 19:48:17 +01:00
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`truncate --size {{10G}} {{filename}}`
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2018-07-15 10:24:57 +01:00
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2021-08-15 18:59:09 +01:00
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- Extend the file size by 50 MiB, fill with holes (which reads as zero bytes):
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2018-07-15 10:24:57 +01:00
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2021-05-24 19:48:17 +01:00
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`truncate --size +{{50M}} {{filename}}`
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2018-07-15 10:24:57 +01:00
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2021-08-15 18:59:09 +01:00
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- Shrink the file by 2 GiB, by removing data from the end of file:
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2018-07-15 10:24:57 +01:00
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2021-05-24 19:48:17 +01:00
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`truncate --size -{{2G}} {{filename}}`
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2019-12-30 12:41:06 +00:00
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- Empty the file's content:
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2021-05-24 19:48:17 +01:00
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`truncate --size 0 {{filename}}`
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- Empty the file's content, but do not create the file if it does not exist:
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`truncate --no-create --size 0 {{filename}}`
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