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Use case: folder with flac files with tree structure ../artist/album/number-title.flac
1) convert flac->mp3 in the same folder: http://www.commandlinefu.com/commands/view/6341/convert-all-.flac-from-a-folder-subtree-in-192kb-mp3
2) search for mp3 files and recreate tree structure to another path: http://www.commandlinefu.com/commands/view/8853/copy-selected-folder-found-recursively-under-src-retaining-the-structure
3) move all mp3 files to that new folder: this command
In a folder with many files and folders, you want to move all files where the date is >= the file olderFilesNameToMove and
copy files to a ssh server with gzip compression
Useful to move many files (thousands or millions files) over ssh. Faster than scp because this way you save a lot of tcp connection establishments (syn/ack packets).
If using a fast lan (I have just tested gigabyte ethernet) it is faster to not compress the data so the command would be:
tar -cf - /home/user/test | ssh user@sshServer 'cd /tmp; tar xf -'