HOWTO: Sort values using field separator
sort --field-separator=';' --key=2,1,3
http://stackoverflow.com/questions/9471101/sort-csv-file-by-column-priority-using-the-sort-command
sort --field-separator=';' --key=2,1,3
http://stackoverflow.com/questions/9471101/sort-csv-file-by-column-priority-using-the-sort-command