How to do `tail -f logfile.txt`-like processing in node.js?

Question

tail -f logfile.txt outputs the last 10 lines of logfile.txt, and then continues to output appended data as the file grows.

What\'s the recommended way

Answer 1

Substack has a file slice module that behaves exactly like tail -f, slice-file can stream updates after the initial slice of 10 lines.

var sf = require('slice-file');

var xs = sf('/var/log/mylogfile.txt');
xs.follow(-10).pipe(process.stdout);

Source: https://github.com/substack/slice-file#follow