c++ - Sorting using Ack Grep Linux -

i have file in format:

id:10time:[12:55:28.156452] id:11time:[12:55:28.156542] id:12time:[12:55:28.157418] id:13time:[12:55:28.157446] id:14time:[12:55:28.167463] id:15time:[12:55:28.167490] id:16time:[12:55:28.176210] 

i sort file based on time stamp value in braces. beginner in this, think give me start.

use sort -kn flag

sort -k2 file