Linux sparse file
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Last update
2017-06-21
2017
06-21
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To create a sparse file:

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dd if=/dev/zero of=file.ext bs=1 count=0 seek=10G

The command ls -slh file.ext will output something like this:

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3G -rw------- 1 cloud cloud 10G Jan 01 2017 file.ext

there are two size columns: the first 3G is the allocated space and the second 10G is the max space allocable (that means we still have 7G of space left).


See also Wiki archlinux