Pádraig Brady wrote:
> On 11/11/10 17:54, Paul Eggert wrote:
...
>> It's
>> not a big deal, but I still mildly prefer the * notation.

Same here.

However, here's an argument for using a different method, perhaps
with a hard-coded mapping from common FS types to known precision:

Running these two commands with different ordering prints
different results.  When the file with NS%10 == 0 comes first,
stat suppresses the trailing 0(s):

    $ stat -c '%4n %.*Z' 3 9
       3 1289555520.29981438
       9 1289555520.300814502

After the first non-multiple-of-10 nanoseconds value,
stat prints all trailing 0's:

    $ stat -c '%4n %.*Z' 9 3
       9 1289555520.300814502
       3 1289555520.299814380

It's easy to create files like that via e.g.,

  seq 10000|xargs touch -d '1970-01-01 18:43:33.5000000000'



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