JSON
Return results in JSON format, scanning --all records. The JSON result has the following properties - sorted (boolean), record_count (number), unsorted_breaks (number) & dupe_count (number). Unsorted breaks count the number of times two consecutive rows are unsorted (i.e. n row > n+1 row). Dupe count is the number of times two consecutive rows are equal. Note that dupe count does not apply if the file is not sorted and is set to -1.