sort(1) -t _ -k6n,6.4 -k2M -k3n -k4.1n,4.2 -k4.4n,4.5 -k4.7n,4.8
sort lines of text files
-t, --field-separator=SEP
       use SEP instead of non-blank to blank transition
-k, --key=POS1[,POS2]
       start a key at POS1 (origin 1), end it at POS2 (default end of line).  See POS syntax below
-n, --numeric-sort
       compare according to string numerical value
-M, --month-sort
       compare (unknown) < `JAN' < ... < `DEC'
source manpages: sort