How to tail all the log files inside a folder and subfolders?

问题

In Linux, using the command tailf, how can I tail several log files that are inside a folder and in the subfolders?

回答1:

To log all the files inside a folder, you can go to the folder and write

tailf *.log

To add the subfolders to the tailf command, use

tailf **/*.log

Instead of tailf you can also use tail -f. Of course, the regular expression can be improved to match only specific file names.

回答2:

This will recursively find all *.log files in current directory and its subfolders and tail them.

find . -type f \( -name "*.log" \) -exec tail -f "$file" {} +

Or shortly with xargs:

find . -name "*.log" | xargs tail -f

回答3:

If all log files doesn't have same extension. You can use following command.

tail -f **/*

回答4:

This way find files recursively, print lines starting on line 5 in the each file and save on concat.txt

find . -type f \( -name "*.dat" \) -exec tail -n+5 -q "$file" {} + |tee concat.txt

来源：https://stackoverflow.com/questions/18321336/how-to-tail-all-the-log-files-inside-a-folder-and-subfolders