How to get rid of bad chrs?

[Ralf Mardorf]

Hi,

are you using a preformatted external drive? Those drives are usually
performatted by one of the Microsoft FAT file systems. If so, {g,}rsync
can't preserve permissions and attributes and apart from this, item
names aren't allowed to contain NUL, " * / : < > ? \ |.

Either format the drive to use a compatible file system or use "tar".
Inside an archive permissions and attributes are preserved on what ever
file system it's written.

If the item names shouldn't cause issues and if you don't need to
preserve permissions and attributes, {g,}rsync might provide an option
to not care about preserving permissions and attributes.

Regards,
Ralf