cp /dev/zero filename creates large files
Don Sharp
dwsharp@iee.org
Thu Sep 25 09:28:00 GMT 2003
Hi
I carried out the following sequence of commands
$ for i in `cat /tmp/d`; do if [ -f $i.idx ]; then ls -l ${i}*; fi; done
-rw-r--r-- 1 don None 0 Jun 17 1998 dtaq
-rw-r--r-- 1 don None 3072 Jun 17 1998 dtaq.idx
$ cp /dev/zero dtaq.idx
The cp appeared to be hanging and the disc was rattling away, so in
another window I typed in
$ ls -l dtaq*
-rw-r--r-- 1 don None 0 Jun 17 1998 dtaq
-rw-r--r-- 1 don None 65307648 Jun 17 1998 dtaq.idx
and you can see that the reported size of the target of the 'cp
/dev/zero' has grown to a considerable size in a short time.
Can anyone else reproduce this?
Attaching cygcheck.log
Cheers
Don Sharp
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