You can see if a file still contains some compressed clusters even
though the `c' flag has been cleared (see section What if I decompress a file on a full device?) with
lsattr. In such a case,
lsattr will not show the `c'
flag, but will still show a cluster size. (If you haven't installed the
lsattr from the e2compr distribution, then you have no way of
reliably knowing, though you can guess by doing `df' and by
comparing the `ls -l' size of a file with its `du' or `ls
-s' size.) Here are some examples.
Here, the file is compressed:
$ lsattr foo --c---- 16 lzrw3a foo
We try to decompress it. The `c' flag is cleared, but the cluster size is still there. This means that the file still holds some compressed clusters:
$ chattr -c foo $ lsattr foo ------- 16 lzrw3a foo
In the next example, the cluster size is no more displayed after the file is decompressed. The decompression has succeeded:
$ lsattr foo --c---- 16 - foo $ chattr -c foo $ lsattr foo ------- - - foo
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