Filtering CloudWatch logs for a long time window

Recently I needed to filter cloud watch logs for a keyword, since the time window was too long and it was container based app, there were too many log streams to filter on. So not a task that can be done manually using console.

AWS cli came handy and below did the magic ..

aws logs filter-log-events --log-group-name production/ecs-service --log-stream-name-prefix my-service-prod --filter-pattern user111  --start-time 1561997947000 --end-time 1574698747000 --output text >> user1.txt


Time filter is given in milliseconds since 1970 .. This web site was handy to come up for those



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