### [Read this on the main serverless docs site](https://www.serverless.com/framework/docs/providers/kubeless/cli-reference/logs) # Kubeless - Logs Lets you watch the logs of a specific function. ```bash serverless logs -f hello ``` ## Options - `--function` or `-f` The function you want to fetch the logs for. **Required** - `--startTime` A specific unit in time to start fetching logs from (ie: `2010-10-20` or `1469705761`). Here's a list of the supported string formats: ```bash 30m # since 30 minutes ago 2h # since 2 hours ago 3d # since 3 days ago 2013-02-08 # A calendar date part 2013-W06-5 # A week date part 2013-039 # An ordinal date part 20130208 # Basic (short) full date 2013W065 # Basic (short) week, weekday 2013W06 # Basic (short) week only 2013050 # Basic (short) ordinal date 2013-02-08T09 # An hour time part separated by a T 20130208T080910,123 # Short date and time up to ms, separated by comma 20130208T080910.123 # Short date and time up to ms 20130208T080910 # Short date and time up to seconds 20130208T0809 # Short date and time up to minutes 20130208T08 # Short date and time, hours only ``` - `--filter` You can specify a filter string to filter the log output. This is useful if you want to to get the `error` logs for example. - `--tail` or `-t` You can optionally tail the logs and keep listening for new logs in your terminal session by passing this option. - `--count` or `-n` You can print the last N lines of the log. ## Examples ```bash serverless logs -f hello --startTime 5h ``` This will fetch the logs that happened in the past 5 hours. ```bash serverless logs -f hello --startTime 1469694264 ``` This will fetch the logs that happened starting at epoch `1469694264`. ```bash serverless logs -f hello -t ``` Serverless will tail the platform log output and print new log messages coming in. ```bash serverless logs -f hello --filter serverless ``` This will fetch only the logs that contain the string `serverless`