I need a command that acts like tail -f (displays file changes in realtime), but it should display the new output for all files (even if the new file is created/added). I don't know what files will be there in the directory I need to listen, that's why I need it.
I found out that tail -f folder_name/* does what I want, but it doesn't work if I'll add a new file, it wouldn't display its changes.
Is there a way to accomplish what I need?
Looks like a very similar question was asked before.
monitor files (ala tail -f) in an entire directory (even new ones)
Essentially tail -f does not work as you expect because the * wildcard was expanded at execution time and tail isn't build to keep evaluating. You need to use a different app.
There are good solutions suggested in the answers to the previous question. The three I noticed are inotify, multitail, and xtail. It probably best to get more details about those in the other answers.
Reflex might be useful to you. It can watch a directory and run a command when files change. Written in Go.
