Upgrading a Dollar Universe node to a higher version with the command "unirun -u" fails with the following error in the output:
======================================================================= --> executing : find /dollar_universe_path/mgr -type f | xargs -i'{}' chmod u=rx,g=rx,o=rx "{}" xargs: unmatched double quote; by default quotes are special to xargs unless you use the -0 option
The mgr folder of the instance contains files with a double quote(") in their name. Example of such a name "YDF*...... , or ABV*AAA or any other similar names.".
Resolution
Delete or rename all files within Dollar Universe Folders that have a " in the name.