csv-tac - concatenate CSV files and print on the standard output in reverse
csv-tac [OPTION]… [FILE]…
Concatenate CSV FILE(s) to standard output, last row first. With no FILE, or when FILE is -, read standard input.
All files must have the same columns (number, names, and types), but their order can be different between files. csv-tac chooses the order of the first input file.
csv-tac file1.csv - file2.csv
tac(1), csv-cat(1), csv-show(1), csv-nix-tools(7)