csv-cat - concatenate CSV files and print on the standard output
csv-cat [OPTION]… [FILE]…
Concatenate CSV FILE(s) to standard output. 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-cat chooses the order of the first input file.
csv-cat file1.csv - file2.csv
cat(1), csv-tac(1), csv-show(1), csv-nix-tools(7)