问题
I am having a problem with logs in Heroku. When I want to look at the logs, sometimes I have missed a few lines. How can I save Heroku server logs to file.txt, or any other file?
回答1:
You can try this:
heroku logs -n number_of_lines --app application_name >> file_name
>> operator will appends the command output to the end of a file : file_name
however, heroku keeps the last 1,500 lines of consolidated logs. If you’d like to persist more than 1,500 lines for long-term storage, search, alerting, filtering and other processing, you can use logging Add-on Providers.
回答2:
Heroku has several logging add-ons (most have zero-cost tiers). Easy to set up. Check out Logging Add-Ons
来源：https://stackoverflow.com/questions/29910252/how-to-save-heroku-logs-to-text-file