2018-07-15 17:24:57 +08:00
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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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2021-03-30 09:02:27 +02:00
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> More information: <https://www.gnu.org/software/coreutils/manual/html_node/truncate-invocation.html>.
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2018-07-15 17:24:57 +08:00
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- Set a size of 10 GB to an exsting file, or create a new file with the specified size:
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`truncate -s {{10G}} {{filename}}`
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- Extend the file size by 50M, fill with holes (which reads as zero bytes):
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`truncate -s +{{50M}} {{filename}}`
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- Shrink the file by 2GiB, by removing data from the end of file:
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2019-12-30 14:41:06 +02:00
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`truncate -s -{{2G}} {{filename}}`
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- Empty the file's content:
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`truncate -s 0 {{filename}}`
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