find . -name " *" | while read name;do na=$(echo KaTeX parse error: Double superscript at position 16: name | tr -d ' '̲); mv "name" $na; done
find . -name " *" | while read name;do na=$(echo KaTeX parse error: Double superscript at position 16: name | tr -d ' '̲); mv "name" $na; done