Последующее обслуживание e2fsck

Использование awkв одну сторону:

awk 'NR==FNR && NR>1{seen[$0]++; next} 
     NR==1{ print "Status," $0}
     FNR!=1{print ($0 in seen)?"Common," $0:"New," $0;delete seen[$0];}
END{for (x in seen) print "Old," x}' old.csv new.csv

Выход:

Status,name,age,lastname,film,song,mother,fadher,col0,col1,col3,col4,col5,col6,col7,a,b,z,t
Common,jay,23,,stgh,tt,,,,,,,,,,,
New,alex,22,,hello,,,,,,,,,,,jed,,,
Old,Chris,43,titanic,hi,,,,,,,
Old,Ann,32,,,,,,,,,,,,,,,,