chencang

# parse csv files to an awk array.
awk -F, '{
  parse_csv(r);
  
  # replace following line with your code.
  print r[1], r[2], r[3], r[4];
} function parse_csv(r, _quote, _i, _n) {
  _i = 1;
  _quote = 0; # in a quoted string or not.