Need help with script to copy files from hfs+ (read-only) to ntfs (some chars not allowed)...

wallphoenix · 04-14-2020, 12:01 PM

I have some recovered files on an hfs+ drive (which is journaled, so I can only mount it read-only), that I need to copy to an ntfs drive so they can be accessed from a friend's windows machine. Unfortunately, there are a number of files with characters in the filenames that are allowed in hfs+, but not windows, so I need to batch rename them before they can be written to the ntfs drive, but without writing on the read-only drive.

My current thought is to use rename's -n option, which prints a list of files that will be renamed to stdout, and use that list with copy to change the name of each of those files.

Can someone help me out with what commands might be needed to send info from that list to copy for the right file in each case? Or is there a better/safer way to do this?

Thanks!

BW-userx · 04-14-2020, 01:28 PM

https://www.cyberciti.biz/faq/linux-rename-file/

wallphoenix · 04-14-2020, 08:57 PM

The mv command deletes the original file, though, doesn't it? So I can't use mv because the originating filesystem is read-only. I can't use rename alone because it doesn't move the files and I can't rename the files before I copy or move them because, again, the originating filesystem can only be mounted read-only. Or am I missing something there?

Can I combine

Code:

grep <findRegex> | xargs -I '{}' cp '{}' /destinationfolder

with

Code:

rename -n <renameRegex> | xargs -I '{}' cp sourceFile /destinationFolder/'{}'

somehow?

BW-userx · 04-14-2020, 09:02 PM

I know nothing about hfs+, but reasoning suggest that if you copy to a different location, then the original is only being read on the source, and the write is being done elsewhere, therefor it suggest that it is possible to just read then write to a different location giving the file a different (compatible) filename.

testing will revile the truth of this matter.

yes delete removes the original file, so copy is the thing you'll want to do. It is late here, I'd have to test the commands to get it to work myself.

something like
https://unix.stackexchange.com/quest...function-linux

Turbocapitalist · 04-15-2020, 02:08 AM

The you can have find call a shell and work with in that. Or if that is too compex then you can have it call a shell script. Here is just a shell which replaces the vowels:

Code:

find . \ 
        -maxdepth 1 \ 
        -type f \ 
        -execdir sh -c " \
                echo cp {} \$(echo \"{}\" \
                | perl -p -e 's|[aeiou]|X|g; \
                              s|^\./|/new/path/|' ) \
        " \;

I've used perl because that gives the most flexibility but a sed script would work too in many situtations.

It would be nice to patch rename to be able to use cp also.

JJJCR · 04-15-2020, 04:12 AM

Quote:

Originally Posted by wallphoenix

The mv command deletes the original file, though, doesn't it? So I can't use mv because the originating filesystem is read-only. I can't use rename alone because it doesn't move the files and I can't rename the files before I copy or move them because, again, the originating filesystem can only be mounted read-only. Or am I missing something there?

Can I combine

Code:

grep <findRegex> | xargs -I '{}' cp '{}' /destinationfolder

with

Code:

rename -n <renameRegex> | xargs -I '{}' cp sourceFile /destinationFolder/'{}'

somehow?

try this:
grep -E ':[[:alnum:]]+:' | xargs -I '{}' cp '{}' /destinationfolder