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truncate: add example (#6038)
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@ -5,16 +5,20 @@
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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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`truncate -s {{10G}} {{filename}}`
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`truncate --size {{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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`truncate --size +{{50M}} {{filename}}`
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- Shrink the file by 2GiB, by removing data from the end of file:
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`truncate -s -{{2G}} {{filename}}`
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`truncate --size -{{2G}} {{filename}}`
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- Empty the file's content:
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`truncate -s 0 {{filename}}`
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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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