the log format is as follows
log
REQ UP 15275791948097993 POST / {"Content-Length":"61926",xxxxxxxxxx}
REQ UP 15275791948097993 POST / {"Content-Length":"61926",xxxxxxxxxx}
grep xxxx log | awk-F""{print strftime ("% Y-%m-%d% H:%M:%S", $3) $0}"
when the timestamp is 10 digits, the above command can be executed normally and parse the correct time, but here the timestamp is 17 digits, how can the time be parsed normally?