Cyril Bouthors wrote:
> I'm having problems when moving everything from a directory that
> contains 10852 top level directories and a total of ~300000+ files and
> subdirectories with this command:
>
> # mv * ../../../webalizer-clients/
>
> It fails with:
>
> mv: cannot create regular file
> `../../../webalizer-clients/bouthors/usage_200305.html': Too many open files
Thanks for the report. It is much appreciated. However I am unable
to reproduce the problem locally. I tried this to do so:
mkdir /tmp/foo /tmp/bar
cd /tmp/foo
for f in $(seq 1 30000);do touch $f;done
mv * ../bar/
I tried both 5.2.1 and the latest 5.3.0 release image. You said you
were using linux 2.6.6. What glibc version are you using?
However, whenever you are moving a very large or unbounded number of
files using a shell expanded glob character such as '*' you should be
aware of exceeding the ARG_MAX kernel limitation. For example in my
above case just removing that list of files will trigger the problem
on my system.
rm ./*
-bash: /bin/rm: Argument list too long
Let me suggest the following as an improvement.
ls | xargs mv --target-directory=../../../webalizer-clients/
This works if the files all have normal names. For handling files
with unusual characters it is always best to use null terminated
strings. For this 'find' is best. I tend to use the short options
but for clarity this following example has fully spelled out options
suitable for a script.
find . -maxdepth 1 -not -path . -print0 \
| xargs --no-run-if-empty --null mv --target-directory=/SOME/DIR/
Bob
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