I don't think this is a coreutils bug - the core utilities are locale-sensitive by design, and this is not Ubuntu-specific. Scripts should override the locale to C where necessary if they need to parse what would normally be human-readable output.
I don't think this is a coreutils bug - the core utilities are locale-sensitive by design, and this is not Ubuntu-specific. Scripts should override the locale to C where necessary if they need to parse what would normally be human-readable output.