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A comment on How do I delete bytes from the beginning of a file? (2010). Parent comment

Re:How do I delete bytes from the beginning of a file? (2010) by CrowFly on Thursday June 06, 2019 @12:08AM (#20111501)
Linux doesn't implement sparse files.
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Re:How do I delete bytes from the beginning of a file? (2010) by fl0wenol on Thursday June 06, 2019 @12:53AM (#20111692)
Yes it does? The details are file system specific and if they support mmap then it's also likely there's a page alignment requirement but that's not atypical.
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Re:How do I delete bytes from the beginning of a file? (2010) by LeoPanthera on Thursday June 06, 2019 @01:08AM (#20111758)
Not only does it do so, but dd directly supports sparse files, using the "sparse" conv symbol.
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