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Please supply the output that you are getting. "Does not work" is hard to debug.
Also give us the output of:
The output of:
<pre>ls -l /bin/bash</pre>
might be helpful as well.
I really ought to try this but I haven't got time ... one thought is :1 person found this helpful
$( du $dir |wc -l)
might be the answer
`du $dir |wc -l`
.... But other requests about giving the actual error message (if any) and bash version really helps people to help you without wild guessing.