Am 29.01.2011 14:58, schrieb Alex Schuster: > Hi there! > > I am currently putting extra backups to old hard drives I do no longer need > for other purposes. After that I send the putput out ls -lR and du -m to my > log directory so I can check what files are on which drive without having to > attach the drive. > > Works, though a better method would be to clone the drive's root directory, > but with all file sizes being zero. This way I can easily navigate the > directory structure, instead of browsing through the ls-lR file. Is there a > utility that does this? It would be even better if the files would be > created as sparse files, faking the original size. > > I just wrote a little script that does this, but it does not do the sparse > file thing yet, and would have problems with newline in file names. And I > guess someone already wrote such a utility? > > Wonko >
Use `truncate -s <size> <file>`
It creates a sparse file if the specified file is smaller than the
specified size. It will also create a new file if it does not yet exist.
In order to avoid trouble with line breaks in names, I recommend
something like:
find . -type f -print0 |
while read -d $'\0' file; do
echo "File=$file"
done
Or use similar commands accepting or outputting 0-byte terminated
strings, for example xargs -0, du -0, grep -z.
For copying file attributes from one file to another you can use `cp
--attributes-only`.
Hope this helps,
Florian Philipp
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