Re: old burned cd file in wav

The version of md5sum,sha256sum, and others I have allow the '--quiet' 
option which only generates output if there is a FAILED.

On 10/1/2020 11:13 AM, Fred Maxwell [email protected] [EAC] wrote:
> That’s also a great method.  Did you mean "find *" or was that supposed 
> to be "find .” to begin the search at the current directory?
> 
> 
> I made some tweaks and came up with this Mac-friendly method:
> 
> find . -type f -exec shasum -a 256 '{}' \; > sha256.txt
> shasum -a 256 -c sha256.txt | grep FAILED
> 
> Notes:
> 1.  md5sum is not installed by default on the Mac, but shasum is and 
> SHA256 is more robust.
> 2.  My music directory tree has multiple formats of music as well as 
> ancillary files like cover art, so I opened it up to all files.
> 3.  I don’t want to see thousands of “OK” lines, so I added the grep for 
> “FAILED”.  I’m hoping I don’t encounter an artist, album, or track name 
> that contains “FAILED”.  :)
> 4.  Your method with date-specific filenames makes sense, but I was 
> being lazy.
> 5.  My version assumes that your current working directory (as in ‘pwd’) 
> is the top level of your music directory structure when you start.  The 
> find could be modified to specify that directory.
> 
> Thanks, Jerry.