CloudWatch Logs

We mainly check whether commands can be executed using AWS Cloud9.
If you would like to provide example commands, please submit them using the form below.
Please also provide corrections if the command examples have mistake.

---

Create a log group

aws logs create-log-group \
--log-group-name ExampleLogGroup

output

None

by anonymous

Create a log stream

aws logs create-log-stream \
--log-group-name ExampleLogGroup \
--log-stream-name ExampleLogStream

output

None

by anonymous

Output log events

TIME="`date +%s`000"
TEXT="This is example message."
EVENT="timestamp=${TIME},message=\"${TEXT}\""
aws logs put-log-events \
--log-group-name ExampleLogGroup \
--log-stream-name ExampleLogStream \
--log-events "${EVENT}"

output

{
    "nextSequenceToken": "49647012347438648207383750719339122106922125597460136466"
}

by anonymous

Check log events

aws logs get-log-events \
--log-group-name ExampleLogGroup \
--log-stream-name ExampleLogStream

output

{
    "events": [
        {
            "timestamp": 1717663812000,
            "message": "This is example message.",
            "ingestionTime": 1717663813481
        }
    ],
    "nextForwardToken": "f/49647012347438648207383750719339122106922125597460136466/s",
    "nextBackwardToken": "b/49647012347438648207383750719339122106922125597460136466/s"
}

by anonymous

Set retention period in bulk for log groups with matching prefixes

logs=$(aws logs describe-log-groups \
--log-group-name-prefix /aws/lambda \
--query 'logGroups[*].[logGroupName]' \
--output text)
for i in $logs; do aws logs put-retention-policy --log-group-nam $i --retention-in-days 7 ;done

output

None

by anonymous