How to use tail -f recursively on a directory and its sub-directories?

问题

I am trying to use tail utility in linux to monitor the logs present under nested directories. I tried using tail -f /var/log/**/* but this only go till direct child of log directory. It does not dig beyond one level. Basically I am trying to tail all the application logs in docker container and pass them to /proc/1/fd/1, so that they appear under docker logs.

回答1:

You need to enable

 shopt -s globstar

if it is disabled in your shell.

With this setting enabled, Bash will recurse directories with **.

This is not a feature of Docker or tail, it is a feature of your shell.

来源：https://stackoverflow.com/questions/58101405/how-to-use-tail-f-recursively-on-a-directory-and-its-sub-directories