how to view aws log real time (like tail -f)

aws-cli amazon-cloudwatch
LynAs picture LynAs · Dec 1, 2015 · Viewed 46.7k times · Source

I can view the log using the following command.

aws logs get-log-events --log-group-name groupName --log-stream-name streamName --limit 100

what is the command to get feature like tail -f so that i can see the log real time

Answer

Tyler Brock picture Tyler Brock · Jun 18, 2018

I was really disappointed with awslogs and cwtail so I made my own tool called Saw that efficiently streams CloudWatch logs to the console (and colorizes the JSON output):

You can install it on MacOS with:

brew tap TylerBrock/saw
brew install saw

It has a bunch of nice features like the ability to automatically expand (indent) the JSON output (try running the tool with --expand):

saw watch my_log_group --expand

Got a Lambda you want to see error logs for? No Problem:

saw watch /aws/lambda/my_func --filter error

Saw is great because the output is easily readable and you can stream logs from entire log group, not just a single stream in the group. Filtering and watching streams with a certain prefix is also just as easy!

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