Etaoin Shrdlu writes:
> On Sat, 29 Jan 2011 14:58:13 +0100
>
> Alex Schuster <wo...@wonkology.org> wrote:
> > 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?
>
> IIUC, try
>
> find / -type d -exec sh 'mkdir -p target"$1"' - {} \;
Hmm, that does not really seem to work. It tries to execute the whole stuff
between single quotes as a command. And I don't really understand what it is
supposed to do, shouldn't this be something like mkdir -p
/destination/$1/\{\} ?
Anyway, this is what I already have. It duplicates the hierarchy with empty
files, but I have to add support for sparse files. That won't be too hard,
but maybe I'm re-inventing the wheel here.
#!/bin/bash
src=$1
dst=$2
cd "$src" || exit $?
IFS=$'\n'
find . |
while read file
do
if [[ -d $file ]]
then
[[ -d "$dst/$file" ]] ||
mkdir -p "$dst/$file"
elif [[ -f $file ]]
then
[[ -d "$dst/${file%/*}" ]] ||
mkdir -p "$dst/${file%/*}"
touch "$dst/$file"
fi
done
Wonko
