9t (nine-tailed fox in Japanese) is multi-file tailer (like tail -f a.log b.log ...).

1. Preparation

   $ yukari() { echo '世界一かわいいよ!!' }
   $ while :; do       yukari >> tamura-yukari.log ; sleep 0.2 ; done
   $ while :; do echo $RANDOM >> random.log        ; sleep 3   ; done
   $ while :; do         date >>      d.log        ; sleep 1   ; done

2. Run

   $ 9t tamura-yukari.log random.log d.log
   

$ go get github.com/gongo/9t/cmd/9t

So far, Multiple file display can be even tail -f.

But, I wanted to see in a similar format as the heroku logs --tail.

app[web.1]: foo bar baz
app[worker.1]: pizza pizza
app[web.1]: foo bar baz
app[web.2]: just do eat..soso..
.
.

MIT License