Calculate folder files size skipping .DS_Store Junk

[2Turbo]

I'm trying to figure out the exact folder size in bytes but excluding the system junk .DS_Store files. I want only the size of actual files (not invisible system files).

The reason is I'm trying to compare two backup hdd's and want to make sure every byte matches to ensure no corruption or missing files. OS X makes this very hard.

Is there an app that skips calculating the junk files?

 

[GGJstudios]

I'm trying to figure out the exact folder size in bytes but excluding the system junk .DS_Store files. I want only the size of actual files (not invisible system files).

The reason is I'm trying to compare two backup hdd's and want to make sure every byte matches to ensure no corruption or missing files. OS X makes this very hard.

Is there an app that skips calculating the junk files?

Your backups should also include hidden files, so their presence should not cause a discrepancy.

 

[Weaselboy]

I'm trying to figure out the exact folder size in bytes but excluding the system junk .DS_Store files. I want only the size of actual files (not invisible system files).

The reason is I'm trying to compare two backup hdd's and want to make sure every byte matches to ensure no corruption or missing files. OS X makes this very hard.

Is there an app that skips calculating the junk files?

I think that will be tough to do, since many backup program do exclude quite a few files.

For example, it you are using Time Machine, you can run the below command in Terminal to see what has been excluded by default by Apple. It is a long list.

sudo mdfind "com_apple_backup_excludeItem = 'com.apple.backupd'"

If using Carbon Copy Cloner, there is a list here that shows what is excluded by default.

Most backup programs do something along these lines, so your comparison is not going to match.

What you may be better off doing is seeing if your backup software has a built in method of verifying a backup. With Time Machine you can option key click the Time Machine menulet and there is a Verify Backups option there.